: 1.21 $2024-03-29T05:22:16-7:0044.222.196.236searchRM Populus deltoidesphysical specimenSalicaceaePopulusdeltoidesW. Bartram ex Marshall3233Ronald L. Hartman197232383U.S.A.CaliforniaRiversideHwy 111, 2 mi N of Palm Springs.Occasional along dry wash. Phenology: flowering.RMRM394186 Populus deltoidesphysical specimenSalicaceaePopulusdeltoidesW. Bartram ex Marshall19Kris Sletten1983611162U.S.A.South DakotaGregoryBurke Lake Recreational Area.-99.256943.1768634Area below dam. Common. Phenology: fruiting.RMUSFS444442 Populus deltoidesphysical specimenSalicaceaePopulusdeltoidesW. Bartram ex Marshall1825Peter F. Stickney1969520140U.S.A.MontanaMissoulaMissoula: University of Montana, Forestry Sciences Laboratory, near Beckwith Avenue.975Valley floor. Phenology: flowering.RMRM604809 Populus deltoidesphysical specimenSalicaceaePopulusdeltoidesW. Bartram ex Marshall6822Neil Hotchkiss194286218U.S.A.North DakotaWardDes Lacs National Wildlife Refuge: west side of upper Des Lacs Lake, 3.5 mi NNW of Kenmare.Former Lake shore. Phenology: vegetative only.RMRM154633 Populus deltoidesphysical specimenSalicaceaePopulusdeltoidesW. Bartram ex Marshall1425H. F. Bergman1912517138U.S.A.North DakotaDunnHawkinson.In hollow between knolls in sand hills. Phenology: flowering.RMRM444436 Populus deltoidesphysical specimenSalicaceaePopulusdeltoidesW. Bartram ex Marshall1897John Hubbard1935617168U.S.A.South DakotaBrownJames River, ca 10 mi E of Aberdeen.Flat ground; rich loam soil; floodplain with cottonwood, willow. Abundant. Phenology: vegetative only.RMUSFS444434 Populus deltoidesphysical specimenSalicaceaePopulusdeltoidesW. Bartram ex Marshall1656J. M. Aikman193564155U.S.A.NebraskaHarlanPrairie States Forestry Project: Hwy 6, 3.6 mi E of Oxford.Flat ground; alluvial soil; with cottonwood, willow. Phenology: vegetative only.RMUSFS444435 Populus deltoidesphysical specimenSalicaceaePopulusdeltoidesW. Bartram ex Marshalls.n.J. M. Aikman1935611162U.S.A.NebraskaKnoxBazile Creek, 3.5 mi S of Center.Flat ground; rich loam soil; lower floodplain; associated with boxelder and willow. Sparse, scattered clumps. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6866Timothy W. Chumley Irene Thien1997628179U.S.A.ColoradoFremont[location and coordinates withheld]19321945Along the open, sandy banks of the stream in pinyon-juniper. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7253Timothy W. Chumley Randy Pratt1997103276U.S.A.ColoradoFremont[location and coordinates withheld]1570On Niobrara formation shale in pinyon-juniper with Frankenia jamesii, Oonopsis puebloensis, Parthenium tetraneuris, Oryzopsis hymenoides, Bouteloua gracilis, Aristida purpurea, and Eriogonum spp. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.56461B. E. Nelson Peter Ebertowski200269160U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: on the divide between Cottonwood and Horse creeks along Cheyenne River Road and S, ca 39.5 air mi SW of Newcastle.-104.890443.572613291384Sandy slopes and bottom of gully. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.56498B. E. Nelson Peter Ebertowski200269160U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: N of Keyton Creek off Keyton Creek or Forest Road 937, ca 47 air mi WSW of Newcastle; ca 23 air mi NNE of Bill.-105.0343.51613411365Stream bottom and gully bottoms. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.56667B. E. Nelson Peter Ebertowski2002611162U.S.A.WyomingConverseThunder Basin National Grassland and Vicinity: along Lake Creek and area to the E, ca 14 air mi NE of Bill; ca 46 air mi NNE of Douglas.-105.090643.384413531381Stream banks. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.56968B. E. Nelson Peter Ebertowski2002613164U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: along Pump Creek W of Forest Road 913, ca 5.5 air mi ESE of Upton.-104.510244.06221457Flats along the creek. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.57021B. E. Nelson Peter Ebertowski2002616167U.S.A.WyomingConverseThunder Basin National Grassland and Vicinity: between a tributary of Dugout Creek and the railroad tracks, ca 2.5 air mi E of Wyo Hwy 59, ca 41.5 air mi N of Douglas; ca 9 air mi NNW of Bill.-105.330343.355714171426Along stream channel, vernal areas, and near stock pond. Phenology: fruiting.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.57369B. E. Nelson2002711192U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: Mush Creek at Upton-Fairview Road, ca 14.5 air mi S of Upton; ca 22 air mi W of Newcastle.-104.65143.89381295Stream channel and adjacent flats. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.57960B. E. Nelson Peter Ebertowski2002813225U.S.A.WyomingConverseThunder Basin National Grassland and Vicinity: along Sand Creek above and below confluence with Coal Draw, ca 20 air mi NW of Bill; ca 46 air mi NNW of Douglas.-105.589243.392114661475Wet meadows and flats along stream channel. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.57988B. E. Nelson Peter Ebertowski2002814226U.S.A.WyomingConverseThunder Basin National Grassland and Vicinity: along the Cheyenne River from Sheep Creek down stream ca 1 mi, ca 22 air mi NE of Bill; ca 54 air mi NNE of Douglas.-104.950843.45621307Banks along the river. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.58004B. E. Nelson Peter Ebertowski2002814226U.S.A.WyomingConverseThunder Basin National Grassland and Vicinity: along the Cheyenne River ca 2 air mi below confluence of Antelope Creek and Dry Fork Cheyenne River, ca 18.5 air mi NE of Bill; ca 50 air mi NNE of Douglas.-105.010743.427513041329Cottonwood forest in the river bottom. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.58161B. E. Nelson2002816228U.S.A.WyomingConverseThunder Basin National Grassland and Vicinity: along Antelope Creek at Phillips or Forest Road 973, ca 17 air mi N of Bill; ca 51 air mi N of Douglas.-105.170543.47061359Cottonwood woods. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1395Peter J. Ebertowski200277188U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: upper end of Dry Fork Spring Creek on Heald or County Road 49, ca 8.5 air mi NE of Weston; ca 31 air mi NNE of Gillette.-105.217844.68812251243Wide ravine with Idaho fescue on slopes, floor a clayey soil. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1476Peter J. Ebertowski2002710191U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: Black Thunder Creek on Keeline or Forest Road 930, ca 20 air mi E of Wright; ca 43 air mi SSE of Gillette.-105.089943.742613591365Creek bed. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1651Peter J. Ebertowski2002713194U.S.A.WyomingNiobraraThunder Basin National Grassland and Vicinity: tributary of Cow Creek, on Cow Creek or County Road 3, ca 18 air mi NNW of Lance Creek; ca 27 air mi WSW of Mule Creek Junction.-104.722443.283312861323Grassy creek bed. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1682Peter J. Ebertowski2002713194U.S.A.WyomingNiobraraThunder Basin National Grassland and Vicinity: Lance Creek on County Road 13, ca 16.5 air mi NNE of Lance Creek; ca 45 air mi SSW of Newcastle.-104.582743.262512071213Creek bed. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2031Peter J. Ebertowski2002722203U.S.A.WyomingConverseThunder Basin National Grassland and Vicinity: hills above and NW of Walker Creek on County Road 43, ca 31 air mi NE of Douglas; ca 17 air mi WNW of Lance Creek.-104.986943.0813841439Grassy ravine with occasional ponderosa pine. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2061Peter J. Ebertowski2002722203U.S.A.WyomingConverseThunder Basin National Grassland and Vicinity: Lightning Creek on County Road 43, ca 34 air mi NE of Douglas; ca 17 air mi ESE of Bill.-104.970843.140313321341Along creek. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2066Peter J. Ebertowski2002722203U.S.A.WyomingNiobraraThunder Basin National Grassland and Vicinity: tributary of Little Cow Creek on Cow Creek Road, ca 41 air mi NE of Douglas; ca 18.5 air mi E of Bill.-104.891243.239213621365Creek bed. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2301Peter J. Ebertowski2002727208U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: Piney Creek on Piney Creek or County Road 17, ca 24 air mi ESE of Wright; ca 27 air mi NNE of Bill.-105.069943.586814201445Creek bank. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2342Peter J. Ebertowski2002729210U.S.A.WyomingConverseThunder Basin National Grassland and Vicinity: Antelope Creek on Forest Road 949, ca 31 air mi SE of Wright; ca 17 air mi NNE of Bill.-105.070643.441813231332Creek bed. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2381Peter J. Ebertowski2002729210U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: Cheyenne River on Dull Center or County Road 7A, ca 34 air mi ESE of Wright; ca 26 air mi NE of Bill.-104.910343.501812561283Streambank. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2429Peter J. Ebertowski2002731212U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: West Plum Creek on Plum Creek Road, ca 6.5 air mi NW of Newcastle; ca 21 air mi SE of Upton.-104.28943.935913531365Grassy creek floodplain with willow and cottonwood. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2508Peter J. Ebertowski200282214U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: hills N of Weston Peak on Forest Road 1246, ca 25 air mi NNE of Gillette; ca 33 air mi NW of Moorcroft.-105.359544.629211981280Wide grassy ravine. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2549Peter J. Ebertowski200282214U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: Wild Horse Creek on York or Forest Road 900, ca 27 air mi NNE of Gillette; ca 24 air mi N of Rozet.-105.217844.629212071234Creek bank and floodplain. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.264Peter J. Ebertowski B. E. Nelson2002620171U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: Cow Camp on Buck Creek, off of Forest Road 926, ca 25 air mi E of Wright; ca 41 air mi WSW of Newcastle.-105.010143.756813411371Creek bed and sandy bank. Phenology: fruiting.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2653Peter J. Ebertowski200285217U.S.A.WyomingConverseThunder Basin National Grassland and Vicinity: Stinking Water Creek on County Road 31, ca 34 air mi SSW of Wright; ca 42 air mi NNW of Douglas.-105.727843.306515821597Grassy creek bottom. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2691Peter J. Ebertowski200287219U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: Lodgepole Creek on Wyo Hwy 116, ca 30 air mi W of Newcastle; ca 17 air mi SSW of Upton.-104.790743.785113011314Creek bed. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2734Peter J. Ebertowski2002811223U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: Cottonwood Creek E of County Road 7A, ca 32 air mi ESE of Wright; ca 41 air mi WSW of Newcastle.-104.910343.558513321375Grassy gully leading to creek. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2768Peter J. Ebertowski2002811223U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: Kellog Reservoir on Forest Road 914, ca 9.5 air mi ESE of Upton; ca 18 air mi NW of Newcastle.-104.4744.048113011314Bank of reservoir. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3004Peter J. Ebertowski2002815227U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: Pine Creek on Wyo Hwy 116, ca 0.9 mi NE of Upton; ca 20 air mi SE of Moorcroft.-104.610844.11831310Fenceline along ditch and creek. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3087Peter J. Ebertowski2002816228U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: Beaver Creek upstream and ca 0.8 air mi W of its confluence with Hay Creek, on Old Highway 85, ca 22 air mi SSE of Newcastle; ca 12.5 air mi NNE of Mule Creek Junction.-104.112543.530111211140Creek bank. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3172Peter J. Ebertowski2002818230U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: Cabin Canyon on dirt road ca 0.7 air mi NW of Bishop Road, ca 20 air mi SE of Gillette; ca 17 air mi SW of Moorcroft.-105.21444.090213351365Grassy creek bank with cottonwoods and Rocky Mountain juniper. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3257Peter J. Ebertowski2002819231U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: School Creek ca 1.5 air mi S of its confluence with Little Thunder Creek, on School Creek or Forest Road 968, ca 17 air mi ESE of Wright; ca 47 air mi SSE of Gillette.-105.189643.643414081426Wide flat creek bank dominated by Spartina and Cirsium. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3293Peter J. Ebertowski2002820232U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: along Coal Creek and one of its tributaries ca 2 air mi WSW of Coal Creek's confluence with Little Powder River, ca 24 air mi ENE of Gillette; ca 31 air mi NW of Moorcroft.-105.339344.614511821207Creek floodplain, stony soil. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3366Peter J. Ebertowski2002820232U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: ridge above and NE of Duck Creek, on gravel road ca 1 air mi SE of Rocky Point or County Road 85, ca 38 air mi NNE of Gillette; ca 39 air mi NNW of Moorcroft.-105.217844.790811401207Grassy ravine with ponderosa pine. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.340Peter J. Ebertowski2002620171U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: Hay Creek and vicinity on Mush Creek or County Road 58, ca 27 air mi WSW of Newcastle; ca 21 air mi SSW of Upton.-104.730843.799213011314Creek bed. Phenology: fruiting.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3450Peter J. Ebertowski2002825237U.S.A.WyomingNiobraraThunder Basin National Grassland and Vicinity: Crooked Creek on Cheyenne River or County Road 6, ca 11.5 air mi W of Mule Creek Junction; ca 33 air mi SSW of Newcastle.-104.458143.40691170Roadside in creek drainage. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3484Peter J. Ebertowski2002825237U.S.A.WyomingNiobraraThunder Basin National Grassland and Vicinity: Hungry Hollow on Cheyenne River or County Road 6, ca 34 air mi SSW of Newcastle; ca 52 air mi SSE of Upton.-104.379443.399811521189Creek bank. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3503Peter J. Ebertowski2002826238U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: along Piney Creek off of Piney Canyon or County Road 17, ca 25 air mi SE of Wright; ca 27 air mi NNE of Bill.-105.0543.586813961414Creek bank. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3555Peter J. Ebertowski2002830242U.S.A.WyomingNiobraraThunder Basin National Grassland and Vicinity: Sage Creek on County Road 64, ca 14 air mi NNE of Lusk; ca 19 air mi NE of Manville.-104.337642.9441347Creek bank. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3753Peter J. Ebertowski200292245U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: along Buzzard Creek on Keeline or Forest Road 930, ca 22 air mi ESE of Wright; ca 45 air mi SSE of Gillette.-105.069943.700114081420Grassy ravine. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.525Peter J. Ebertowski2002624175U.S.A.WyomingConverseThunder Basin National Grassland and Vicinity: Antelope Creek on Forest Road 942, ca 28 air mi SE of Wright; ca 16.5 air mi NNE of Bill.-105.130543.456213381347On floodplain of creek. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.669Peter J. Ebertowski2002626177U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: above Darlington Draw and S of Tepee Benchmark on Forest Road 923, ca 32 air mi E of Wright; ca 34 air mi WSW of Newcastle.-104.850543.728413961445Gully in sagebrush. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.790Peter J. Ebertowski2002628179U.S.A.WyomingNiobraraThunder Basin National Grassland and Vicinity: Hungry Hollow on Cheyenne River or County Road 6, ca 34 air mi SSW of Newcastle; ca 52 air mi SSE of Upton.-104.378943.395511521182Gully in sagebrush. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.902Peter J. Ebertowski2002630181U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: tributary of Lodgepole Creek off Grieves or County Road 5, ca 23 air mi SW of Newcastle; ca 33 air mi SSE of Upton.-104.551343.615112741292Sandy slopes of creek bed. Phenology: fruiting.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4023Peter J. Ebertowski2003530150U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: badlands ca 1 mi NW of Soda Well, on Forest Road 1247B, ca 31 air mi NNE of Gillette; ca 34 air mi NNW of Moorcroft.-105.278544.702611761250Grassy ravine with ponderosa pine. Phenology: fruiting.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4200Peter J. Ebertowski200362153U.S.A.WyomingConverseThunder Basin National Grassland and Vicinity: grassland S of Middle Creek on County Road 45, ca 18 air mi E of Bill; ca 46 air mi SE of Wright.-104.910943.269513561371Clay/silt soil on slope above creek. Phenology: fruiting.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4652Peter J. Ebertowski2003611162U.S.A.WyomingConverseThunder Basin National Grassland and Vicinity: hills between Philips Draw and Dugout Creek immediately W of train tracks, ca 12 air mi NW of Bill; ca 27 air mi SSE of Wright.-105.370243.384414751524Wash with grassy floor. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4695Peter J. Ebertowski2003612163U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: sagebrush grassland immediately SE of Little Powder River, off Wyo Hwy 59, ca 18 air mi N of Gillette; ca 30 air mi NW of Moorcroft.-105.420344.526412041219Creek bank. Phenology: fruiting.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4910Peter J. Ebertowski2003616167U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: ridge and ravines SE of and draining to Horse Creek, on two-track off Cheyenne River or County Road 54, ca 33 air mi SE of Wright; ca 37 air mi SW of Newcastle.-104.890443.572613531378Tributary of creek. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4943Peter J. Ebertowski2003616167U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: Piney Canyon on Piney Canyon or County Road 69, ca 22 air mi ESE of Wright; ca 48 air mi WSW of Newcastle.-105.109843.586814751542Creek bank. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5182Peter J. Ebertowski2003620171U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: hills W of Little Powder River on Wyo Hwy 59, ca 7 air mi S of Montana; ca 43 air mi N of Gillette.-105.385544.901810671085Creek bed and bank. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5196Peter J. Ebertowski2003620171U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: hills W of Little Powder River S of Coal Creek on dirt road off of Wyo Hwy 59, ca 23 air mi NNE of Gillette; ca 31 air mi NW of Moorcroft.-105.359544.599812041353Shallow gulch. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6086Peter J. Ebertowski200375186U.S.A.WyomingConverseThunder Basin National Grassland and Vicinity: washes W of and draining to Bobcat Creek, on Forest Road 958, ca 10 air mi E of Bill; ca 37 air mi NNE of Douglas.-105.070643.240814021426Creek bed. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6108Peter J. Ebertowski200375186U.S.A.WyomingConverseThunder Basin National Grassland and Vicinity: Cow Creek Buttes along and including Owl Creek, on four wheel drive road off Forest Road 958, ca 15 air mi E of Bill; ca 39 air mi NNE of Douglas.-104.950843.240813711463Creek bed. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6307Peter J. Ebertowski200379190U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: Blacktail Creek on U.S. Hwy 85, ca 9.5 air mi S of Newcastle; ca 23 air mi N of Mule Creek Junction.-104.192343.700111891204Creek bank. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6751Peter J. Ebertowski2003715196U.S.A.WyomingConverseThunder Basin National Grassland and Vicinity: artesian well and creek E of Dugout Creek, ca 1 mi N of its confluence with Dry Fork Cheyenne River, on two-track road, ca 31 air mi SSE of Wright; ca 41 air mi N of Douglas.-105.290343.355714021414Grassy creek bed and adjacent bank. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6862Peter J. Ebertowski2003718199U.S.A.WyomingNiobraraThunder Basin National Grassland and Vicinity: Lance Creek, 0.5 mi S of confluence with Greasewood Creek on Greasewood or County Road 10, ca 37 air mi N of Lusk; ca 39 air mi SSW of Newcastle.-104.373343.29531155Roadside on floodplain with open canopy of cottonwoods. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6889Peter J. Ebertowski2003718199U.S.A.WyomingNiobraraThunder Basin National Grassland and Vicinity: grassland ca 1.8 mi N of Greasewood Creek, on Greasewood or County Road 10, ca 40 air mi N of Lusk; ca 24 air mi NE of Lance Creek.-104.404943.330212071237Ravine in grassland. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6937Peter J. Ebertowski2003718199U.S.A.WyomingNiobraraThunder Basin National Grassland and Vicinity: Marcus Draw, on Redbird or County Road 11, ca 19 air mi N of Lance Creek, ca 42 air mi SSW of Newcastle.-104.57943.298812371292Grassy floor of draw. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7017Peter J. Ebertowski2003723204U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: Big RW Creek, ca 1 mi N of its confluence with Black Thunder Creek, on Keeline or Forest Road 930, ca 18 air mi E of Wright; ca 40 air mi SSE of Gillette.-105.129843.770913751408Ravine in sagebrush grassland. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7115Peter J. Ebertowski2003725206U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: Lone Tree Creek, on Grieves or County Road 5, ca 20 air mi WSW of Newcastle; ca 27 air mi S of Upton.-104.551343.714312741298Grassy creek bed. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7201Peter J. Ebertowski2003727208U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: tributary of Dry Fork Spring Creek, on York or Forest Road 900, ca 30 air mi NE of Gillette; ca 31 air mi NW of Moorcroft.-105.217844.673311951250Broad grassy ravine floor. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7283Peter J. Ebertowski2003727208U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: ridge E of Short Creek, on road continuing Forest Road 1246, ca 34 air mi NW of Moorcroft; ca 24 air mi N of Gillette.-105.444.629212431371Bank along spring. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7341Peter J. Ebertowski2003729210U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: grassland N of Little Thunder Creek, on Wyo Hwy 450, ca 28 air mi ESE of Wright; ca 39 air mi WSW of Newcastle.-104.970243.657613291341Grassy ravine in sagebrush grassland. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7474Peter J. Ebertowski2003731212U.S.A.WyomingConverseThunder Basin National Grassland and Vicinity: Woody Creek, on two-track off Forest Road 944, ca 29 air mi SE of Wright; ca 11 air mi N of Bill.-105.230443.384413841402Creek bank. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7560Peter J. Ebertowski200382214U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: West Fork Duck Creek, on two-track off Forest Road 903, ca 34 air mi NNE of Gillette; ca 34 air mi NNW of Moorcroft.-105.197544.73212131265Ravine with occasional boxelder and ash on slopes. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7632Peter J. Ebertowski200382214U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: Cedar Draw, on Wyo Hwy 59, ca 16 air mi N of Gillette; ca 30 air mi NW of Moorcroft.-105.439244.525212161341Creek bed. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7654Peter J. Ebertowski200384216U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: upper (northern) part of Fields Draw, on Wyo Hwy 450, ca 32 air mi WSW of Newcastle; ca 33 air mi E of Wright.-104.850543.685913171353Ravine floor, with scattered big sagebrush. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7816Peter J. Ebertowski200387219U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: Little Thunder Creek, on Wyo Hwy 450, ca 18 air mi ESE of Wright; ca 48 air mi WSW of Newcastle.-105.149743.671813781384Creek bank. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8003Peter J. Ebertowski2003811223U.S.A.WyomingConverseThunder Basin National Grassland and Vicinity: Browner Draw, on two-track off Steinle or County Road 40, ca 34 air mi SSE of Wright; ca 42 air mi NNE of Douglas.-105.150543.341313991423Creek bank. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8084Peter J. Ebertowski2003813225U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: West Fork Cottonwood Creek, on Avon Road, ca 15 air mi ENE of Gillette; ca 6 air mi N of Rozet.-105.216444.359212561286Creek bank. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8115Peter J. Ebertowski2003813225U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: hills and ravines ca 0.5 mi E of Soda Well, on Forest Road 1247, ca 31 air mi NNE of Gillette; ca 33 air mi NNW of Moorcroft.-105.258344.68812011231Reservoir shoreline. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8231Peter J. Ebertowski2003815227U.S.A.WyomingConverseThunder Basin National Grassland and Vicinity: Gibson Draw, ca 0.7 mi N of Antelope Creek, on Forest Road 973, ca 25 air mi SE of Wright; ca 53 air mi N of Douglas.-105.169743.487613591371Creek bed and bank. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8277Peter J. Ebertowski2003817229U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: Black Thunder Creek, on Cheyenne River or County Road 54, ca 31 air mi SW of Newcastle; ca 40 air mi ESE of Wright.-104.730843.57261250Silver sagebrush with widely spaced cottonwoods. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8317Peter J. Ebertowski2003817229U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: Beaver Creek, ca 0.3 mi N of its confluence with South Beaver Creek, off U.S. Hwy 85, ca 16 air mi S of Newcastle; ca 16 air mi N of Mule Creek Junction.-104.192343.615111401161Creek bank. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8409Peter J. Ebertowski2003819231U.S.A.WyomingCrookThunder Basin National Grassland and Vicinity: Little Missouri River, on County Road 200, ca 32 air mi N of Moorcroft; ca 35 air mi NW of Sundance.-104.925744.72431173Floodplain. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8525Peter J. Ebertowski2003822234U.S.A.WyomingConverseThunder Basin National Grassland and Vicinity: Antelope Creek, ca 0.5 mi W of its confluence with Wildcat Creek, on Forest Road 949, ca 28 air mi SE of Wright; ca 51 air mi NNE of Douglas.-105.110643.441813171341Grassy wash. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8632Peter J. Ebertowski2003825237U.S.A.WyomingCampbellThunder Basin National Grassland and Vicinity: reservoirs between Weston and Little Powder River, on Forest Road 908, ca 27 air mi NNE of Gillette; ca 32 air mi NW of Moorcroft.-105.31944.643911281146Wash with Rocky Mountain juniper and cottonwood. Phenology: vegetative only.RMRM913364 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.40772Erwin F. Evert2004611163U.S.A.WyomingBig HornBighorn Basin: along Dry Creek 0-1/3 mi E of Wyo Hwy 32, 0.5 mi N of U.S. Hwy 14.1301Weedy riparian area with Salix exigua, Elaeagnus angustifolia, Sporobolus airoides, and in wetter areas Typha latifolia.RMRM913495 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.40879Erwin F. Evert2004618170U.S.A.WyomingBig HornBighorn Basin: along Little Dry Creek Road 3/4 mi E of Wyo Hwy 32, 5 mi N of U.S. Hwy 14, 20 mi W of Greybull.1399In and around dry reservoir with Scirpus validus, Typha latifolia, and Tamarix chinensis.RMRM912769 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.41177Erwin F. Evert200565156U.S.A.WyomingBig HornBighorn Basin: ca 1/3 mi W of Wyo Hwy 32 and 1/4 mi W of Coon Creek.1359Around small reservoir with Tamarix chinensis, Salix exigua, and Iva axillaris. Phenology: vegetative only.RMRM753285 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.14341Erwin F. Evert1988610162U.S.A.WyomingPark[location and coordinates withheld]1638Along north shore of reservoir, at upper edge of seasonal draw-down area, dominated by Salix exigua and Populus angustifolia. Phenology: vegetative only.RMRM779755 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.22744Erwin F. Evert1992611163U.S.A.MontanaStillwater[location and coordinates withheld]1097Weedy riparian area with Salix amygdaloides, Acer negundo, Populus deltoides, and Medicago lupulina. Phenology: fruiting.RMRM780347 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.26667Erwin F. Evert199465156U.S.A.MontanaCarbonShupak Pond, ca 6 mi NNW of Belfry.-109.036445.22621189Wet soil along edge of pond and drainage ditch with Juncus balticus, Salix exigua, Triglochin concinnum, and Typha latifolia. Phenology: fruiting.RMRM780212 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.26806Erwin F. Evert199466157U.S.A.MontanaCarbon[location and coordinates withheld]1295Disturbed open areas in campground along shoreline. Phenology: vegetative only.RMRM783819 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.29773Erwin F. Evert199576187U.S.A.MontanaSweet Grass[location and coordinates withheld]1158Disturbed, weedy riparian area and field with Bromus tectorum, Medicago lupulina, and Poa pratensis. Phenology: vegetative only.RMRM818160 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.32743Erwin F. Evert1997610161U.S.A.MontanaCarbonAlong the east side of the Clarks Fork Yellowstone River, ca 1.3 mi E of Edgar and U.S. Hwy 310.-108.832445.45781054Disturbed riparian/pasture area with Tanacetum vulgare, Hesperis matronalis, and Euphorbia esula. Phenology: fruiting.RMRM819774 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.33275Erwin F. Evert1997622173U.S.A.WyomingHot SpringsBighorn Basin: Public Fishing Access Site along the east side of the Big Horn River, just NE of Lucerne, 7 mi N of Thermopolis.1280Weedy, riparian area in sandy soil with Bromus tectorum, Malcolmia africana, Sporobolus airoides, and Centaurea repens. Phenology: vegetative only.RMRM819644 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.33721Erwin F. Evert1997710191U.S.A.IdahoFremontSnake River Plains: in Ashton along railroad tracks and around grain elevators just S of Main Street and E of school.1603Gravelly soil with Kochia scoparia, Polygonum aviculare, and Tribulus terrestris. Phenology: vegetative only.RMRM819912 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.34552Erwin F. Evert199785217U.S.A.MontanaSweet GrassGrey Bear Campground/Boating Access, along the south side of the Yellowstone River, 6 mi SW of Big Timber.1250Disturbed riparian community on sandy soil with Populus angustifolia, Cornus sericea, Chenopodium botrys, and Spartina pectinata. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.200Gwen Kittel1989719200U.S.A.ColoradoLarimerRiparian Plants of the Cache la Poudre River: vicinity of Grey Rock Trailhead, ca 7 mi W of Teds Place on Colo Hwy 14.1692Riverbank with Pinus ponderosa.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.60567B. E. Nelson Grace Kostel2004514135U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: along South Branch Blacktail Creek, ca 10.5 mi ESE of Oelrichs.-103.036243.1452945963Stream bottom and adjacent banks. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.60723B. E. Nelson Grace Kostel2004517138U.S.A.NebraskaDawesOglala National Grassland and Vicinity: S of Sugarloaf or Forest Road 900, just E and NE of Strawstack Butte, ca 16.5 air mi NNE of Crawford.-103.473342.918811401189Mosiac of grassland, badlands, rocky slopes of clay, and drainage bottoms. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.60757B. E. Nelson Grace Kostel2004517138U.S.A.NebraskaSiouxOglala National Grassland and Vicinity: along Toadstool Road ca 0.5 mi W of Norman Reservoir, ca 14.5 air mi NNE of Crawford.-103.554242.86031134Roadside. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.60781B. E. Nelson Grace Kostel2004517138U.S.A.NebraskaDawesOglala National Grassland and Vicinity: along Sand Creek between Toadstool Road and railroad tracks, ca 8.5 air mi NNE of Crawford.-103.464742.79591109Disturbed area between railroad and county road. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.60842B. E. Nelson Grace Kostel2004519140U.S.A.South DakotaCusterBuffalo Gap National Grassland and Vicinity: mesa ca 1.5-2 air mi S of French Creek and 3/4-1 air mi E of South Fork French Creek, ca 15.5 air mi SE of Hermosa.-103.030243.6377929987Bottom of draw in badlands. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.60869B. E. Nelson Grace Kostel2004519140U.S.A.South DakotaCusterBuffalo Gap National Grassland and Vicinity: mesa ca 2 1/4 air mi S of French Creek and ca 3/4-1 air mi E of South Fork French Creek, ca 16 air mi SE of Hermosa.-103.03316743.635960990Sandy slope. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.60896B. E. Nelson Grace Kostel2004519140U.S.A.South DakotaCusterBuffalo Gap National Grassland and Vicinity: ca 3 1/4 air mi W and 1 air mi N of the Cheyenne River, ca 5.5 air mi WSW of Red Shirt: ca 19.5 air mi SSE of Hermosa.-102.995843.637859890Scattered along the drainage. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.60930B. E. Nelson Grace Kostel2004521142U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: along County Road 9 just E of U.S. Hwy 18, ca 1.5 air mi W of Edgemont.-103.856143.30621079Roadside and right of way. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.60962B. E. Nelson Grace Kostel2004521142U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: along canyon running SE to Moss Agate Creek and along the creek, ca 1/2- 1 1/4 air mi S of County Road 9C, ca 10.5-11 air mi NW of Edgemont.-104.023843.365611281182Bottom of the canyon and along the creek. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.61006B. E. Nelson Grace Kostel2004524145U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: along Horsehead Creek, ca 3 air mi W of U.S. Hwy 385, ca 9 air mi SSW of Oelrichs.-103.288443.05651060Stream banks and channel. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1230Grace M. Kostel200462154U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 4.5-5 air mi SE of Wall, 2-2.5 mi S of I-90, channel draining into Whitewater Creek..-102.18483343.928833807838On badlands in deep channel draining into creek; soils of white, heavy clays. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1273Grace M. Kostel200462154U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 4.5-5 air mi SE of Wall, 2-2.5 mi S of I-90, channel draining into Whitewater Creek..-102.18483343.928833807838River channel. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1321Grace M. Kostel200464156U.S.A.South DakotaCusterBuffalo Gap National Grassland and Vicinity: ca 7 air mi ESE of Fairburn and 0.5 mi N of County Road 18.-103.075543.660167929960Abandoned gravel pit. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1419Grace M. Kostel200464156U.S.A.South DakotaCusterBuffalo Gap National Grassland and Vicinity: ca 19 air mi SE of Hermosa.-102.876543.695833929Draw of clay soil. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1446Grace M. Kostel200464156U.S.A.South DakotaCusterBuffalo Gap National Grassland and Vicinity: ca 10-10.5 air mi ESE of Fairburn, S of County Road 18 in French Creek.-103.00833343.652667884In clay soil along creek and creek banks. Phenology: flowering.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.156Grace M. Kostel Beth A. Burkhart200459130U.S.A.South DakotaCusterBuffalo Gap National Grassland and Vicinity: 22 air mi NE of Buffalo Gap, on the banks of the Cheyenne River.-103.06555643.5675762Banks of river, Populus deltoides/Panicum virgatum plant community in sandy soil. Phenology: flowering.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2091Grace M. Kostel2004612164U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: ca 23.5-24 air mi SW of Edgemont at the three state corner of Nebraska, South Dakota and Wyoming in Indian Creek.-104.03583343.989833945In dry creek bottom. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2301Grace M. Kostel2004615167U.S.A.NebraskaSiouxOglala National Grassland and Vicinity: ca 23 air mi NNW of Crawford and 0.5 mi W of Toadstool Road on Long Branch Creek.-103.64066742.98051097In creek and on creek side slopes of heavy, white clay soil. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2353Grace M. Kostel2004621173U.S.A.South DakotaCusterBuffalo Gap National Grassland and Vicinity: ca 17 air mi SE of Hermosa and 12 air mi ESE of Fairburn and 0.5 mi E of County Road 19 near French Creek.-102.98283343.646333853914On side slopes and in drainages of creek with sand and gravel soil. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2492Grace M. Kostel2004622174U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 12 air mi W of Wall and 1.5 mi W of County Road CE04 on jucture where Sage Creek flows into the Cheyenne River.-102.46943.965333731In Artemisia cana floodplain of creek and river bottom. Soils are of heavy, white clay. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2731Grace M. Kostel2004625177U.S.A.South DakotaCusterBuffalo Gap National Grassland and Vicinity: ca 17-17.5 air mi SE of Hermosa and 1.5-2 mi NNW of Red Shirt and 1-1.5 mi W of SD Hwy 40.-102.90666743.693833853899In draws and on ridge tops. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2887Grace M. Kostel2004625177U.S.A.South DakotaCusterBuffalo Gap National Grassland and Vicinity: ca 20 mi SSE of Hermosa, next to the Cheyenne River.-103.05643.567167838In sandy soil on river banks. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2957Grace M. Kostel2004628180U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: ca 5 air mi. N of U.S. Hwy 18 in large side drainage of Moss Agate Creek; left of School Section follow trail across Moss Agate Creek and left up ridge in a SW direction, 0.75 mi from creek bottom.-104.026943.3361975Soils are gravelly, rocky at top of slopes and grade into silt and clay with clay alkali at creek bottom. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3202Grace M. Kostel200472184U.S.A.South DakotaCusterBuffalo Gap National Grassland and Vicinity: ca 14.5-15 air mi SE of Hermosa and 2.4 mi N of County Road 18.-103.00543.702333853945Rock slopes and buttes of Juniper leading into clay based drainages. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3273Grace M. Kostel200472184U.S.A.South DakotaCusterBuffalo Gap National Grassland and Vicinity: ca 14.5-15 air mi SE of Hermosa and 2.4 mi N of County Road 18.-103.00543.702333853945Butte rock slopes and top. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3318Grace M. Kostel200472184U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: ca 10-10.5 air mi WNW of Edgemont; Moss Agate Creek.-104.01383343.35083311281143In side drainage of creek. Side slopes of rock and gravel. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3455Grace M. Kostel200476188U.S.A.NebraskaDawesOglala National Grassland and Vicinity: ca 6.5-7 mi NNW of Crawford in Sand Creek.-103.44542.7881671097Populous deltoides - Salix plant community with wet, heavy clay soils. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3516Grace M. Kostel2004711193U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: ca 10.5-11 air mi ENE of Smithwick and 4 mi N of County Road 1.-103.006543.341667289On livestock dam. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3575Grace M. Kostel2004711193U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: ca 7.5 mi NE of Smithwick and 0.5 mi N of Bochert Dam, in an ephemeral creek.-103.08833343.357667304Soils are alkali clay with gravel on creek bottom. Drought conditions prevail at this site. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3609Grace M. Kostel2004715197U.S.A.NebraskaSiouxOglala National Grassland and Vicinity: ca 18 air mi NW of Crawford and 1/2-3/4 mi N of Orella Road in Whitehead Creek.-103.63383342.89166711281143Soils are silty and moist. Associated plants growing in creek floor are Salix spp., Prunus virginiana and Ribes spp. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3913Grace M. Kostel2004716198U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 22 air mi ENE of Hermosa and 1 mi W of Swinehart Hill on Rapid Creek.-102.75666743.920833792On the banks of the creek. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3925Grace M. Kostel2004716198U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 7.5 air mi W of Scenic and 1 mi SE of the confluence of Indian Creek and the Cheyenne River.-102.67633343.7785777792On the banks of creek bottom and creek in Artemesia cana shrubland. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4201Grace M. Kostel2004726208U.S.A.South DakotaCusterBuffalo Gap National Grassland and Vicinity: ca 22 air mi SE of Hermosa on the Cheyenne River.-103.055743.5158792On west bank of river in sand soil. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4264Grace M. Kostel2004729211U.S.A.South DakotaCusterBuffalo Gap National Grassland and Vicinity: ca 8.5 air mi SE of Hermosa in Red Shirt Creek.-102.918543.7125868945In drainage of creek and steep slopes of drainage; soils are rock substrate with clayey silt. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4316Grace M. Kostel Steve Popovich200483216U.S.A.NebraskaSiouxOglala National Grassland and Vicinity: ca 13 -15 air mi NW of Crawford at Hudson-Meng Bison Bonebed Trail between Toadstool Geologic Park and Hudson-Meng Bonebed site.-103.600442.844111431250Along Hudson-Meng Bison Bonebed trail. Trail winds through creek bottom and over ridge tops. Soils range from heavy white clay in creek to rocky, gravelly areas on side slopes and at tops of deep cut draws. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4343Grace M. Kostel Steve Popovich200483216U.S.A.South DakotaCusterBuffalo Gap National Grassland and Vicinity: ca 15.5-16 air mi SSE of Hermosa, French Creek.-103.061843.6349929Along banks of creek. Soils are silty and mucky in creek bottom. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.439Grace M. Kostel B. E. Nelson2004521142U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: S of U.S. Hwy 18, ca 5 air mi WSW of Edgemont.-103.959643.28951067Sides of draws in Artemisia tridentata shrubland and grassland. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4529Grace M. Kostel200488221U.S.A.NebraskaSiouxOglala National Grassland and Vicinity: ca 22-22.5 air miNW of Crawford and 1.5 mi W of Warbonnet Battlefield Monumen, Antelope Creek.-103.76366742.9158331097In creek. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.548Grace M. Kostel B. E. Nelson2004524145U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: on County Road 1.5 mi W of Smithwick, 8.5 mi N of Oelrichs.-103.239743.3036945In draw. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.764Grace M. Kostel2004528149U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: ca 8.5 air mi WNW of Edgemont and 2.5 air mi N of U.S. Hwy 18 in side drainage of Moss Agate Creek.-104.01933343.34166711281158Draw bottom. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.831Grace M. Kostel2004529150U.S.A.NebraskaSiouxOglala National Grassland and Vicinity: ca 36-37 air mi NW of Crawford and 8.5 - 9 mi W of Edgemont Road and 0.5 mi NW of Forest Road 932 on south banks of Indian Creek.-104.045842.9841189In sand on south banks of creek. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.959Grace M. Kostel2004530151U.S.A.NebraskaSiouxOglala National Grassland and Vicinity: ca 24 air mi NW of Crawford and 0.5 mi NW of Hat Creek Road on Hat Creek.-103.718542.9431097Dry creek bottom of heavy clay soils. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.10004Grace M. Kostel2005101274U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: ca 11 air mi SSW of Oelrichs, ca 1 1/4 air mi from Horsehead Creek.-103.272143.0382331067In side drainage of creek, soils are clay, clay loam. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5641Grace M. Kostel200567158U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: ca 2-2.5 air mi SW of Edgemont in Cottonwood Creek.-103.85343.27151195Alkali soils of creek drainage. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5671Grace M. Kostel200567158U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: ca 3.5-4 air mi SW of Edgemont in Cottonwood Creek.-103.86918343.256351076Alkali soils of creek drainage. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7159Grace M. Kostel2005620171U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 5 air mi SE of Wall.-102.17088343.938967829Flat to rolling grass uplands draining into clay basin floodplains; soils are sand and silt on uplands to heavy clay in basin bottoms. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7185Grace M. Kostel2005620171U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 6.5 air mi SE of Wall.-102.14391743.923683814Flat to rolling grass uplands draining into clay basin floodplains; soils are silt and sand on uplands and heavy clay in basin bottoms. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7211Grace M. Kostel2005620171U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 6 air mi SSE of Wall.-102.22378343.904983861Flat to rolling grass uplands draining into clay basin floodplains; soils are silt and sand in uplands and heavy clay in basin bottoms. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8264Grace M. Kostel200578189U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 1 air mi SSE of Scenic.-102.5505543.767483853884In badlands floodplain, soils are deep heavy white clay. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8329Grace M. Kostel2005710191U.S.A.South DakotaJacksonBuffalo Gap National Grassland and Vicinity: ca 6-6.5 air mi ESE of Cottonwood in South Fork Bad River.-101.77483343.941783708Soils are silty clay. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8363Grace M. Kostel2005710191U.S.A.South DakotaJacksonBuffalo Gap National Grassland and Vicinity: ca 2 air mi ESE of Cottonwood in Cottonwood Creek.-101.85706743.956767716Soils are silty clay. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8388Grace M. Kostel2005710191U.S.A.South DakotaJacksonBuffalo Gap National Grassland and Vicinity: ca 4.5 air mi SSE of Cottonwood in Cottonwood Creek.-101.86396743.9033731Soils are silty clay. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8796Grace M. Kostel2005717198U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 6.5 air mi SW of Scenic in Indian Creek.-102.658843.72225823Soils are clay overlain with gravel and sand. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8813Grace M. Kostel2005717198U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 7 air mi SW of Scenic in Indian Creek.-102.64741743.710667847In deep cut side drainage of the creek, soils are clay overlain with gravel. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8814Grace M. Kostel2005717198U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 4 air mi SW of Scenic in Indian Creek.-102.61533343.739183853In deep cut side drainage, soil is clay overlain with gravel. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8940Grace M. Kostel2005720201U.S.A.South DakotaCusterBuffalo Gap National Grassland and Vicinity: ca 19-19.5 air mi E of Fairburn, Battle Creek.-102.81778343.6894800In and along shores of creek, soils are wet clay and clay with gravel sediments. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8958Grace M. Kostel2005720201U.S.A.South DakotaCusterBuffalo Gap National Grassland and Vicinity: ca 1 air mi NW of Redshirt and ca 2 air mi due W of County Road 40, Cheyenne River.-102.91106743.672117815At the shores of river, soils are gravel and sand. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9005Grace M. Kostel2005721202U.S.A.South DakotaCusterBuffalo Gap National Grassland and Vicinity: ca 10.5 air mi SE of Fairburn.-103.036643.60105839Soils are sand overlain with gravel sediments. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9122Grace M. Kostel2005722203U.S.A.South DakotaJacksonBuffalo Gap National Grassland and Vicinity: ca 2 air mi NE of Cactus Flats in Big Buffalo Creek.-101.8696543.85625750Wooded draw exclosed from grazing, soils are loam and loamy clay. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9139Grace M. Kostel2005722203U.S.A.South DakotaJacksonBuffalo Gap National Grassland and Vicinity: ca 10.5 air mi SE of Cottonwood in Yellow Draw.-101.83588343.891317746Around perimeter of reservoir, soils are loamy clay. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9173Grace M. Kostel2005722203U.S.A.South DakotaJacksonBuffalo Gap National Grassland and Vicinity: ca 2 1/4 air mi WSW of Kadoka, Kadoka Lake.-101.552643.82715731On the shores near and around lake, soils are clay loam. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9197Grace M. Kostel2005722203U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 7 air mi NW of Cactus Flats in Big Foot Creek.-102.026343.879367772Soils are clay loam. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9217Grace M. Kostel2005723204U.S.A.South DakotaJacksonBuffalo Gap National Grassland and Vicinity: ca 3.5 air mi NW of Cactus Flats.-101.95528343.85305792In reservoir at the head of an ephemeral creek, soils are clay loam. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9252Grace M. Kostel2005723204U.S.A.South DakotaJacksonBuffalo Gap National Grassland and Vicinity: ca 4 air mi SE of Cactus Flats, Martin Dam.-101.839443.810633767In clay pan drainage of a stock dam, soils are clay. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9470Grace M. Kostel200586218U.S.A.NebraskaSiouxOglala National Grassland and Vicinity: ca 20 air mi NNW of Crawford in Sand Creek.-103.51346742.8026171143Soils are sand and clay. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9477Grace M. Kostel200586218U.S.A.NebraskaSiouxOglala National Grassland and Vicinity: ca 24 air mi due W of Montrose.-103.97642.926451219In an ephemeral stream upland of reservoir, soil is silty loam. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9586Grace M. Kostel200587219U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 11.5-12 air mi ESE of Farmingdale and adjacent to west bank of Cheyenne River.-102.67853343.898483746In an abandoned channel of river, soil of clay muck.. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9613Grace M. Kostel200587219U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 9 air mi SE of Farmingdale in Cole Draw.-102.72961743.881780Soils are shale and silt. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9615Grace M. Kostel David Jones200588220U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 17 air mi SSE of Wall in Conata Basin.-102.2047543.743867756At site of large reservoir, soils are white mucky clay. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9645Grace M. Kostel David Jones200588220U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 10.5 air mi WSW of Wall in Big Sage Creek.-102.4363543.942733742Soils are clay. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9666Grace M. Kostel David Jones200588220U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 10.5 air mi WSW of Wall in Big Sage Creek.-102.4363543.942733742Soils are clay. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9695Grace M. Kostel200589221U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 2.5 air mi due E of Wall.-102.18666743.994683823On an abandoned roadway in small stream cut, loam soil. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9713Grace M. Kostel2005810222U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 1 air mi SW of Quinn adjacent to roadway of County Road CS12.-102.139143.9733792In streambed, soils are loamy clay. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9790Grace M. Kostel2005810222U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 3.5 air mi ESE of Wall.-102.1677543.988583823In wetland reservoir, soils are loamy clay. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9810Grace M. Kostel2005812224U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 8 air mi SE of Wall.-102.08841743.940433792In wetland reservoir, soils are loam muck. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9814Grace M. Kostel2005812224U.S.A.South DakotaPenningtonBuffalo Gap National Grassland and Vicinity: ca 10 air mi SE of Wall.-102.0887543.896933792In wetland reservoir, soils are loam muck. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9839Grace M. Kostel2005815227U.S.A.South DakotaJacksonBuffalo Gap National Grassland and Vicinity: ca 16.5 air mi SW of Kadoka.-101.8302543.765067731In a deep-cut stream channel in badlands floodplain. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9959Grace M. Kostel2005101274U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: ca 4 mi WSW of Edgemont adjacent ot U.S. Hwy 18.-103.91696743.2901831189On calcareous, rocky slopes and adjacent drainage, soils are rock, gravel, and eroding shale. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9975Grace M. Kostel2005101274U.S.A.South DakotaFall RiverBuffalo Gap National Grassland and Vicinity: ca 10 air mi WNW of Edgemont in side drainage of Moss Agate Creek.-104.01761743.35211128In grass/shrubland broken by drainage channels, soils are loamy clay and alkaline. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.52277B. E. Nelson Luanne Lum200165156U.S.A.WyomingWashakieBighorn Basin: along Middle Fork Fifteen Mile Creek at Platte Pipeline or BLM Road 1430, ca 15 air mi WNW of Worland.-108.219344.072413171320Stream bank and bed. Phenology: fruiting.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.52327B. E. Nelson Luanne Lum200165156U.S.A.WyomingBig HornBighorn Basin: near the head of South Fork Dorsey Creek on Dorsey Creek or BLM Road 1103, ca 4 air SE of Sheep Mountain, ca 8 air mi SSW of Otto; ca 17 air mi WSW of Basin.-108.359444.306213781396Banks of stock pond. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.52385B. E. Nelson Luanne Lum200167158U.S.A.WyomingWashakieBighorn Basin: reservoir on North Fork Buffalo Creek just S of Big Cedar Ridge along Blue Bank or BLM Road 1411, ca 11.5 air mi WNW of Big Trails; ca 25 air mi SE of Worland.-107.532243.822214871493Shoreline and below high water line of reservoir. Phenology: fruiting.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.52724B. E. Nelson2001612163U.S.A.WyomingWashakieBighorn Basin: along Fifteen Mile or BLM Road 1429, ca 1 air mi W of North Fork Fifteen Mile Creek, ca 14.5 air mi NW of Worland.-108.199344.116713171323Shoreline and dam of reservoirs. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.52726B. E. Nelson2001612163U.S.A.WyomingWashakieBighorn Basin: along Fifteen Mile or BLM Road 1429, ca 1 air mi W of North Fork Fifteen Mile Creek, ca 14.5 air mi NW of Worland.-108.199344.116713171323Shoreline and dam of reservoirs. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.105Luanne Lum2001615166U.S.A.WyomingHot SpringsBighorn Basin: along County Road 4, ca 4 air mi NE of Thermopolis, E of the Big Horn River.-108.146143.691613191364Riparian with Populus (cottonwood) and Salix. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.153Luanne Lum2001618169U.S.A.WyomingHot SpringsBighorn Basin: along County Road 26, ca 5 air mi N of Thermopolis.-108.205843.70613411371Roadside ditch. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.242Luanne Lum2001621172U.S.A.WyomingBig HornBighorn Basin: along Wyo Hwy 31 E of Nowood River, ca 13 air mi ESE of Manderson and ca 8 air mi WSW of Hyattville.-107.73444.219412501274Cattail marsh with Populus. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.523Luanne Lum Michelle Wilson200173184U.S.A.WyomingWashakieBighorn Basin: along Nowood River, ca 8 air mi SW of Hyattville.-107.675544.16081270Riparian on sandy soil. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.542Luanne Lum Michelle Wilson200176187U.S.A.WyomingBig HornBighorn Basin: along South Fork Elk Creek, ca 7.5 air mi SSW of Basin and 6.5 air mi W of Manderson.-108.07744.27731219Riparian on sandy soil; sagebrush on sandy soil. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.574Luanne Lum Michelle Wilson200176187U.S.A.WyomingBig HornBighorn Basin: along County Road 24 1/2, ca 3.8 air mi WNW of Basin and ca 4.5 air mi SSW of Greybull.-108.097144.407612221243Reservoir with Salix on silty sand. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.652Luanne Lum200179190U.S.A.WyomingBig HornBighorn Basin: along Beaver Creek or County Road 258, ca 6.4 air mi NNW of Shell and ca 13 air mi ENE of Greybull.-107.832844.586213351349Area surrounding reservoir with sandy to clayey soil. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.887Luanne Lum2001717198U.S.A.WyomingParkBighorn Basin: along County Road 7WC at Dry Creek, ca 3 air mi WNW of Cody.-109.108244.542815791585Riparian with sandy soil. Phenology: vegetative only.RMRM937001 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.57572B. E. Nelson2002716197U.S.A.WyomingParkBighorn Basin: along Fifteenmile Creek at Fifteenmile Creek or BLM Road 1429 crossing, ca 3 air mi W of Dead Indian Hill, ca 14 air mi E of Meeteetse.-108.601544.19051487Silt/sand or cobble bars, banks of stream channel, and sandy flats with mixed species cottonwood woodland. Phenology: vegetative only.RMRM936999 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.57596B. E. Nelson2002716197U.S.A.WyomingBig HornBighorn Basin: Road Reservoir and Charco along Fifteenmile Creek or BLM Road 1429, ca 0.5 air mi NW of Dead Indian Hill, ca 28 air mi WSW of Basin.-108.54144.20491460On the dam and edge of charco. Phenology: vegetative only.RMRM937000 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.57611B. E. Nelson2002716197U.S.A.WyomingWashakie[location and coordinates withheld]1378Low, clay flats in an exclosure with several Russian olive trees and cottonwoods. Phenology: vegetative only.RMRM936997 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.57619B. E. Nelson2002718199U.S.A.WyomingBig HornBighorn Basin: Montgomery Draw Wetland Protection Project ca 1.5 air mi N of Fivemile Creek, ca 7 air mi SW of Manderson; ca 11.5 air mi S of Basin.-108.07744.21941295Dry reservoir area and areas below the dam. Phenology: vegetative only.RMRM936998 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.57630B. E. Nelson2002718199U.S.A.WyomingBig HornBighorn Basin: Montgomery Draw Wetland Protection Project ca 1.5 air mi N of Fivemile Creek, ca 7 air mi SW of Manderson; ca 11.5 air mi S of Basin.-108.07744.21941295Dry reservoir area and areas below the dam. Phenology: vegetative only.RMRM936996 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.57648B. E. Nelson2002718199U.S.A.WyomingBig HornBighorn Basin: along South Fork Elk Creek, ca 7 air mi W of Manderson; ca 8 air mi SSW of Basin.-108.097144.27731231Silt/sand bars and banks along the stream channel with scattered cottonwood and tamaris thickets. Phenology: vegetative only.RMRM936995 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.57674B. E. Nelson2002718199U.S.A.WyomingBig HornBighorn Basin: along Elk Creek ca 3.5 air mi above the Big Horn River, ca 6.5 air mi WNW of Manderson; ca 5.5 air mi SSW of Basin.-108.07744.30621207Silt bars and banks along stream channel with scattered cottonwood. Phenology: vegetative only.RMRM936994 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.57706B. E. Nelson2002718199U.S.A.WyomingBig HornBighorn Basin: at White Reservoir along White Gulch, ca 0.5 air mi W of Dorsey Creek and ca 1.5 mi S of the Greybull River, ca 4.5 air mi ESE of Otto; ca 7 air mi W of Basin.-108.177844.39311228On reservoir dam. Phenology: vegetative only.RMRM936993 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.57708B. E. Nelson2002718199U.S.A.WyomingBig HornBighorn Basin: at White Reservoir along White Gulch, ca 0.5 air mi W of Dorsey Creek and ca 1.5 mi S of the Greybull River, ca 4.5 air mi ESE of Otto; ca 7 air mi W of Basin.-108.177844.39311228On reservoir dam. Phenology: vegetative only.RMRM936992 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.57730B. E. Nelson2002718199U.S.A.WyomingBig HornBighorn Basin: along County Lane 43 and along the Greybull River, ca 2 air mi SE of Otto; ca 10 air mi W of Basin.-108.238444.378612431250Woodland and thickets along the river. Phenology: vegetative only.RMRM936991 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.57770B. E. Nelson2002721202U.S.A.WyomingWashakieBighorn Basin: Chimney Reservoir between Chimney Springs Draw and Fiscus Gulch, ca 3 air mi SE of Castle Gardents, ca 6 air mi S of Ten Sleep.-107.471943.9381475Dry reservoir bed. Phenology: vegetative only.RMRM936990 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.57791B. E. Nelson2002721202U.S.A.WyomingWashakieBighorn Basin: Bedstead Reservoir on a tributary of North Fork Bud Kimball Creek, ca 2 air mi S of Castle Gardens, ca 8 air mi SSW of Ten Sleep.-107.512143.92351484Slopes of dry reservoir bed. Phenology: vegetative only.RMRM936988 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.57859B. E. Nelson2002721202U.S.A.WyomingWashakieBighorn Basin: Green Bug Reservoir area on Little Cottonwood Creek, ca 2 air mi WSW of Castle Gardens, ca 7.5 air mi SW of Ten Sleep.-107.552243.95241481Drainage channel through old reservoir bed. Phenology: vegetative only.RMRM936989 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.57876B. E. Nelson2002723204U.S.A.WyomingWashakieBighorn Basin: along East Fork Nowater Creek, ca 3 air mi W of Joe Henry Fork, ca 11.5 air mi SE of Worland.-107.77343.923513101317Silt/sand bars, banks along stream channel, and adjacent sandy flats with scattered cottonwoods. Phenology: vegetative only.RMRM936987 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.57937B. E. Nelson2002723204U.S.A.WyomingWashakieBighorn Basin: along Lower and Upper Hanover canals at the end of Lane 7, ca 7.5-8 air mi NNE of Worland.-107.878144.117112311250Disturbed flats with Siberian elm, Russian olive, cottonwood, and shrubs. Phenology: vegetative only.RMRM937015 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2435Luanne Lum2002610161U.S.A.WyomingBig HornBighorn Basin: along Lane 42 1/2, ca 5.9 air mi ESE of Otto and ca 10 air mi ESE of Greybull.-108.379644.37861310Irrigation ditch. Phenology: vegetative only.RMRM937014 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2775Luanne Lum2002616167U.S.A.WyomingWashakieBighorn Basin: within Worland ca 0.2 air mi E of Wyoming Street at southern edge of agriculture field on Lower Hanover Canal.-107.938744.0151240Irrigation drainage canal. Phenology: vegetative only.RMRM937013 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2914Luanne Lum2002620171U.S.A.WyomingBig Horn[location and coordinates withheld]12501253Irrigation ditch. Phenology: vegetative only.RMRM937012 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3637Luanne Lum200273184U.S.A.WyomingWashakieBighorn Basin: along BLM Road 1431 N of Wyo Hwy 431, ca 25.5 air mi W of Worland.-108.459944.01331490Reservoir and sagebrush. Phenology: vegetative only.RMRM937011 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3738Luanne Lum200276187U.S.A.WyomingBig Horn[location and coordinates withheld]1197Agricultural ditch. Phenology: vegetative only.RMRM937010 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4690Luanne Lum Michelle Wilson2002722203U.S.A.WyomingBig HornBighorn Basin: along Shoshone River and Wyo Hwy 37, ca 0.5 air mi ENE of Lovell.-108.460444.86121147Riparian. Phenology: vegetative only.RMRM937009 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4712Luanne Lum Michelle Wilson2002722203U.S.A.WyomingBig HornBighorn Basin: along Coon Creek, ca 2 air mi S of Byron.-108.521144.774412191222Riparian. Phenology: vegetative only.RMRM937008 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4745Luanne Lum Michelle Wilson2002722203U.S.A.WyomingBig HornBighorn Basin: along Shoshone River, ca 1.5 air mi E of Byron.-108.480644.80331201Riparian. Phenology: vegetative only.RMRM937007 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4825Luanne Lum Michelle Wilson2002723204U.S.A.WyomingParkBighorn Basin: along County Road-108.628444.907512951298Reservoir. Phenology: vegetative only.RMRM937006 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4875Luanne Lum Michelle Wilson2002723204U.S.A.WyomingParkBighorn Basin: along Shoshone River W of Willwood Dam and County Road-108.905844.67313441371Riparian. Phenology: vegetative only.RMRM937005 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4909Luanne Lum2002726207U.S.A.WyomingWashakieBighorn Basin: E of Little Slick Creek, ca 4.9 air mi ESE of Worland.-107.878144.00041292Irrigation ditch. Phenology: vegetative only.RMRM937004 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4960Luanne Lum2002729210U.S.A.WyomingBig HornBighorn Basin: along Orchard Bench or County Road 1121 and Elk Creek, ca 5 air mi S of Basin.-108.036644.30621189Mixed riparian and sagebrush. Phenology: vegetative only.RMRM937003 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5055Luanne Lum2002730211U.S.A.WyomingParkBighorn Basin: east portion of Ralston Reservoir and Garland Canal, ca 5.5 air mi WSW of Powell and ca 17.5 air mi NE of Cody.-108.865344.73091387Reservoir and canal. Phenology: vegetative only.RMRM803114 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5421Luanne Lum200285217U.S.A.WyomingBig HornBighorn Basin: at Five Springs Creek, ca 16 air mi ESE of Lovell.-108.09644.788913031304Riparian. Phenology: vegetative only.RMRM937002 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5865Luanne Lum2002817229U.S.A.WyomingBig HornBighorn Basin: along Dry Creek and drainage canal, ca 8.5 air mi W of Greybull.-108.218244.49441243Riparian. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.64804B. E. Nelson Rob Massatti and Rachel Newton200568159U.S.A.WyomingFremontWetlands and Adjacent Areas: northwest corner of Ocean Lake, ca 4.5 air mi SE of Pavillion off Wyo Hwy 134; ca 17.5 air mi NW of Riverton.-108.620243.210915941609Disturbed area and wind break plantings. Phenology: fruiting.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.64919B. E. Nelson Rob Massatti and Rachel Newton200568159U.S.A.WyomingFremontWetlands and Adjacent Areas: west end of Lake Camaehwait (Bass Lake), ca 2 air mi W of Boysen Reservoir, ca 8.5 air mi NW of Shoshoni; ca 20 air mi NNE of Riverton.-108.255943.29514691475Edge of marsh along lake. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.64965B. E. Nelson Rob Massatti and Rachel Newton200568159U.S.A.WyomingFremontWetlands and Adjacent Areas: Fivemile Creek Bay of Boysen Reservoir and along Fivemile Creek, ca 4.5 air mi W of Shoshoni; ca 17.5 air mi NE of Riverton.-108.192243.238814391451Along the edge of the reservoir. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.65149B. E. Nelson2005613164U.S.A.WyomingFremontWetlands and Adjacent Areas: along northeast end of Pilot Butte Reservoir, ca 1 air mi E of Morton; ca 22.7 air mi NW of Riverton.-108.758743.20131661Shore of the reservoir. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.65196B. E. Nelson2005613164U.S.A.WyomingFremontWetlands and Adjacent Areas: Antelope Flats Wetland, between Muddy and Fivemile creeks, ca 15.5-16 air mi N of Riverton.-108.449343.25241585Around edge of reservoir and along ditch. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1903Rachel Newton2005714195U.S.A.WyomingGoshenWetlands and Adjacent Areas: Grayrocks Reservoir, ca 10 air mi NE of Wheatland.-104.751342.1361317Dry rocky uplands. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1958Rachel Newton2005714195U.S.A.WyomingGoshenWetlands and Adjacent Areas: North Platte River, bordering town of Guernsey.-104.75342.27261304Dry uplands. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1971Rachel Newton2005714195U.S.A.WyomingGoshenWetlands and Adjacent Areas: Newell Bay, Guernsey Reservoir, ca 2 air mi NW of Guernsey.-104.775842.29651349Dry rocky slopes. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1991Rachel Newton2005714195U.S.A.WyomingGoshenWetlands and Adjacent Areas: Sandy Beach, Guernsey Reservoir, ca 5 air mi NW of Guernsey.-104.805342.30821349Sandy beach and uplands. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2022Rachel Newton2005715196U.S.A.WyomingGoshenWetlands and Adjacent Areas: North Platte River, ca 23 air mi SE of Guernsey, 2 air mi S of Lingle.-104.351642.10591226Flooded banks and moist flood plains. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2036Rachel Newton2005715196U.S.A.WyomingNiobraraWetlands and Adjacent Areas: Old Woman Creek, ca 18 air mi N of Lusk.-104.382343.04441269Moist creek bed and banks. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2060Rachel Newton2005715196U.S.A.WyomingPlatteWetlands and Adjacent Areas: wetlands below Glendo Dam, North Platte River, ca 17 air mi NE of Guernsey.-104.944642.46651376Marshy banks. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2443Rachel Newton2005725206U.S.A.WyomingNatronaWetlands and Adjacent Areas: North Platte River, Robertson Road, ca 5 air mi SE of Casper.-106.411642.8111605Dry uplands. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3763Rachel Newton200593246U.S.A.WyomingGoshenWetlands and Adjacent Areas: Black Canyon Point, Guernsey Reservoir, ca 3 air mi NW of Guernsey.-104.770242.30911338Rocky dry slopes. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3876Rachel Newton200661152U.S.A.WyomingJohnsonWetlands and Adjacent Areas: Powder River, ca 25 air mi NE of Kaycee.-106.1717243.917281195Heavily grazed horse, sheep, and cow pasture with scattered Populus. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4216Rachel Newton200665156U.S.A.WyomingJohnsonWetlands and Adjacent Areas: Middle Fork Powder River, ca 6 air mi SW of Kaycee.-106.7577443.661541481Along moist ditch banks. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4297Rachel Newton200665156U.S.A.WyomingJohnsonWetlands and Adjacent Areas: Lake De Smet, ca 9 air mi N of Buffalo.-106.7682644.481311411Dry semi-rocky uplands. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4559Rachel Newton200668159U.S.A.WyomingWeston[location and coordinates withheld]1418Moist wooded banks. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4648Rachel Newton2006611162U.S.A.WyomingSheridanWetlands and Adjacent Areas: Powder River, ca 6 air mi N of Arvada, 43 air mi E of Sheridan.-106.0890444.763551112Dry weed-choked uplands and flood plains. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4854Rachel Newton2006612163U.S.A.WyomingCrookWetlands and Adjacent Areas: Redwater Creek, ca 2 air mi W of Beulah; ca 14 air mi NE of Sundance.-104.1192844.547921067Along moist shaded creek banks and flood plains. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5027Rachel Newton2006617168U.S.A.WyomingJohnson[location and coordinates withheld]1337Shaded river banks and floodplain. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5042Rachel Newton2006617168U.S.A.WyomingJohnson[location and coordinates withheld]1472Dry Artemisia scrub uplands. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5059Rachel Newton2006617168U.S.A.WyomingJohnson[location and coordinates withheld]1396Moist river banks and flood plains. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5247Rachel Newton2006623174U.S.A.WyomingFremontWetlands and Adjacent Areas: Boysen Reservoir, ca 7 air mi NNW of Shoshoni.-108.1403843.327421384Moist exposed mud flats. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5259Rachel Newton2006623174U.S.A.WyomingFremontWetlands and Adjacent Areas: Boysen Reservoir, ca 3 air mi WNW of Shoshoni.-108.1612143.246971399Disturbed sandy, rocky uplands. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5702Rachel Newton2006630181U.S.A.WyomingParkWetlands and Adjacent Areas: Newton Lakes, ca 4 air mi NW of Cody.-109.1184444.541371596Dry uplands. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6219Rachel Newton2006725206U.S.A.WyomingHot SpringsWetlands and Adjacent Areas: Big Horn River, ca 4 air mi S of Thermopolis.-108.215243.588921379Dry uplands. Phenology: vegetative only.RMRM771611 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5217Sarah Nunn200199252U.S.A.ColoradoLarimerRoosevelt National Forest: Front Range: Hewlett Gulch off Colo Hwy 14, 0.5 mi W of Poudre Park, ca 13 air mi NW of Fort Collins. C-105.318540.700918292012North to south running gulch with creek and old homestead with ponderosa pine and Populus; Rhus and Chrysothamnus in dry open areas. Phenology: vegetative only.RMRM204082 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3858C. L. Porter1946612163U.S.A.WyomingPlatteAlong North Platte River near Glendo, northern Platte County.-105.059842.59641432Trees 70 ft high and 5 ft in diameter. Phenology: vegetative only.RMRM218116 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5368C. L. Porter1950622173U.S.A.WyomingNiobraraCheyenne River at the crossing between Mule Creek Junction and Newcastle.-104.233443.38891371Large trees along the river. *northern Niobrara county* Phenology: fruiting.RMRM222749 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5750C. L. Porter1951712193U.S.A.WyomingWashakieNear Worland along the Big Horn River.-107.986444.00351250On bottomlands. Common. Phenology: fruiting.RMRM229810 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5978C. L. Porter B. F. Miller1952630182U.S.A.WyomingConverseLightning Creek between Douglas and Bill on Hwy 59.-105.264343.03961524Small trees in moist swales. (WY Hwy 59) Phenology: vegetative only.RMRM236955 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6400C. L. Porter1953818230U.S.A.WyomingGoshenBear Mountains: Lone Tree Canyon.-104.443141.74171463Trees to 80 ft high. Phenology: vegetative only.RMRM247813 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6707C. L. Porter195576187U.S.A.WyomingNiobraraAt crossing of Old Woman Creek on U.S. Hwy 85.-104.365643.08731280Stream bottom. Phenology: vegetative only.RMRM256002 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7454C. L. Porter Marjorie W. Porter195866157U.S.A.WyomingAlbanyLaramie, on the University of Wyoming campus.-105.581241.31312195Tree about 50 ft high. Phenology: fruiting. Cultivated.RMRM255993 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7486C. L. Porter Marjorie W. Porter1958626177U.S.A.WyomingPlatteAlong the North Platte River at Guernsey.-104.754642.26451341Phenology: fruiting.RMRM255923 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7566C. L. Porter Marjorie W. Porter1958724205U.S.A.WyomingCampbell5 mi W of Rozet.-105.304944.29091280Stream bank. Trees 50-60 ft hugh, with rough, tan bark. Phenology: vegetative only.RMRM255924 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7572C. L. Porter Marjorie W. Porter1958724205U.S.A.WyomingCrookDevils Tower National Monument: along the Belle Fourche River.-104.703744.58961554Trees to 70 ft high; bark deeply furrowed and light to dark gray. Phenology: vegetative only.RMRM260236 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7838C. L. Porter Marjorie W. Porter1959623174U.S.A.WyomingCrookDevils Tower National Monument.-104.719844.59051219Bottom land, sandy soil. Trees 70 ft high, 2-3 ft in diameter. with photographs Phenology: fruiting.RMRM260224 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7855C. L. Porter Marjorie W. Porter1959626177U.S.A.WyomingGoshenPlatte River, 2 mi W of Lingle.-104.385242.13211280Bottomland. Trees 60 ft high, 2-3 ft in diameter, bark deeply fissured, light brown. Phenology: fruiting.RMRM260080 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7999C. L. Porter Marjorie W. Porter195986218U.S.A.WyomingPlattePalmer Canyon Road W of Wheatland, on the Laramie River.-105.151942.04451402Trees 60 ft high, 3 ft diameter. Phenology: vegetative only.RMRM260157 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8020C. L. Porter Marjorie W. Porter1959814226U.S.A.WyomingLaramieNear Pine Bluffs, on Spring Creek.-104.081741.19871524Trees about 60 ft. high. Phenology: vegetative only.RMRM268039 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9025C. L. Porter Marjorie W. Porter1962621172U.S.A.WyomingPlatteOn the Laramie River N of Wheatland.-104.936542.12021432Large, spreading trees with deeply furrowed, tan bark. Phenology: fruiting.RMRM273101 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9224C. L. Porter Marjorie W. Porter196363154U.S.A.WyomingConverse3 mi E of Orin Junction.-105.128942.66951478In bottom land. Trees to 40 ft high and 3 ft in diameter, bark tan, deeply fissured. Phenology: fruiting.RMRM273092 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9281C. L. Porter Marjorie W. Porter196366157U.S.A.WyomingCampbell5 mi W of Rozet.-105.305244.29091219Bottom land on the plains. Phenology: vegetative only.RMRM126335 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.11061Aven Nelson1929523143U.S.A.WyomingPlatteGlendo.-105.020342.50011439Dry stream banks. Phenology: fruiting.RMRM132736 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.368Aven Nelson Ruth A. Nelson1932925269U.S.A.WyomingBig HornBig Horn Basin.11581189On the river. Phenology: vegetative only.RMRM3778 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.40Aven Nelson1894516136U.S.A.WyomingAlbanyLaramie.-105.584241.3112184Phenology: fruiting.RMRM3873 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.40Aven Nelson1894516136U.S.A.WyomingAlbanyLaramie.-105.584241.3112184Phenology: fruiting.RMRM132435 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.521Aven Nelson Ruth A. Nelson1932103277U.S.A.WyomingGoshenFort Laramie, Laramie River.-104.557642.20351298Bottom lands. Phenology: vegetative only.RMRM727062 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.780C. A. Popolizio N. E. Hastings, R. M. Smith, D. Hazlett1996614166U.S.A.WyomingPlatteCamp Guernsey: Deadhorse Canyon, ca 0.2 km E of Broom Creek, ca 2 km NW of Emigrant Hill.-104.780942.35671400In narrow canyon bottom with Juniperus woodland in rock to rocky loam with Juniperus scopulorum, Poa pratensis, Cerastiuim arvense, Symphoricarpos sp., and Solidago sp. Infrequent, erect tree, to 1.5 m tall. Phenology: vegetative only.RMRM727026 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.792C. A. Popolizio N. E. Hastings, R. M. Smith, D. Hazlett1996614166U.S.A.WyomingPlatteCamp Guernsey: Cantonment just N of North Platte River, 0.5 km SW of Guernsey Landing Field. To 521400 4678500.-104.728142.25121340On river front with moderate stones and sand, with Poa palustris, P. pratensis, Mentha, Salix, and Carex sp. Scattered, tree; 10-20 m tall. Phenology: vegetative only.RMRM727064 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.843C. A. Popolizio N. E. Hastings, R. M. Smith, D. Hazlett1996616168U.S.A.WyomingPlatteCamp Guernsey: south side of North Platte River, ca 2.2 km N of Cottonwood Creek and ca 2 km S of Impact Area.-104.882342.3421340On riverine with gentle to steep slope of gravelly to stony loam with Acer negundo, Prunus virginiana, Symphoricarpos occidentalis, Ribes, and Poa ssp. Infrequent. Phenology: fruiting.RMRM263294 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1741Dixie R. Smith1960622174U.S.A.WyomingWashakieFifteen-mile drainage west of Worland.-108.006244.072112501310Streamside. Phenology: vegetative only.RMRM94335 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3114Edwin B. Payson Lois B. Payson192292245U.S.A.WyomingBig HornManderson.-107.96644.27551189River bottom. Large trees. Phenology: vegetative only.RMRM619434 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.19236Erwin F. Evert1990626177U.S.A.WyomingParkBighorn Basin: around the western most of the Newton Lakes, ca 4 mi NW of Cody.-109.128644.54311591Wet soil along lake margin with Scirpus acutus, Hordeum jubatum, Scirpus maritimus var. paludosus and Potentilla paradoxa. Phenology: vegetative only.RMRM609486 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6945Erwin F. Evert198479191U.S.A.WyomingParkNorth Fork Shoshone River Drainage: Absaroka Mountains: ca 2 mi S of Wapiti, just S of Stonebridge Reservoir.-109.40644.435619201951Along shore of reservoir. Phenology: vegetative only.RMRM268829 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.349Francis X. Jozwik1962824236U.S.A.WyomingNatronaCasper Mountain area: on the roadside of Gothmore Loop near Katy Creek.-106.408644.51311920Only specimen found, probably escaped from town. Phenology: vegetative only.RMRM38241 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3441Frank Tweedy1900615166U.S.A.WyomingJohnsonBetween Sheridan and Buffalo.10671524Rolling plains. Phenology: vegetative only.RMRM38242 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3442Frank Tweedy19009244U.S.A.WyomingJohnsonBuffalo.-106.891744.320812191524Phenology: vegetative only.RMRM274156 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.537James T. Nichols196366157U.S.A.WyomingWashakieW of Worland, on the lower part of the Fifteenmile drainage area.-108.006244.0721125013105-9 inch precipitation zone. Phenology: fruiting.RMRM328359 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.501Mary Alice Sanguinetti Keith H. Dueholm1978715196U.S.A.WyomingCampbell-105.656344.07621463Near pond. Phenology: vegetative only.RMRM681952 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.422Michael Oliver1991714195U.S.A.WyomingNiobraraEastern Plains: Sage Creek, ca 20 mi N of Lusk.-104.353843.06621259Scattered Populus deltoides with patches of Salix exigua and Carex lanuginosa adjacent to channel on mixed alluvium. Phenology: vegetative only.RMRM681983 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.61Michael Oliver1991828240U.S.A.WyomingPlatteSoutheast Plains: Cooney Creek, near Cooney Hills Road; ca 5.5 mi SW of junction with Palmer Canyon Road SW of Wheatland.-105.166241.98111527Salix exigua/S. amygdaloides community on fine sandy alluvium with patches of coarse sand and gravel in floodplain; understory with Echinochloa muricata, Agrostis stolonifera, Polypogon monspeliensis, and Asclepis sp. Phenology: fruiting.RMRM643697 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.76Michael Oliver1991616167U.S.A.WyomingPlatteSoutheast Plains: south bank of Laramie River, ca 1 mi E of Uva and N of landfill.-104.900942.12591350Mature Populus deltoides with occasional Salix amygdaloides along old side channels and understory of Bromus inermis; on sandy-rocky soils of stream terrace. Phenology: fruiting.RMRM703422 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.81Michael Oliver1991616167U.S.A.WyomingPlatteSoutheastern Plains: Dry Laramie River, ca 13.5 mi NW of Wheatland.-105.194642.12591469Populus deltoides/P. x acuminatus grove along stream near farmhouse road. Phenology: vegetative only.RMRM703743 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.76Michele Barlow199167158U.S.A.WyomingPlatteSoutheastern Plains: north bank of the North Platte River (Wyoming Game and Fish Department Rawhide Unit).-104.313642.18321259Populus deltoides community on north side of river with shrubby understory. Phenology: fruiting.RMRM293452 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.143R. E. Ries D. W. Sabinske1973822234U.S.A.WyomingCampbellNorth Prong of Thunder Creek and Little Thunder Creek.-105.249443.67181411Stream flood plain; absted and bone series soil, with saltgrass, western wheatgrass, and blue grama; loamy, bare, clayey soil. Phenology: vegetative only.RMRM293259 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.108Richard F. Harner197492245U.S.A.WyomingCampbell6 mi NNE of Gillette at Moyer (Marshall) Creek.-105.418944.37431387Streamside vegetation. Phenology: vegetative only.RMRM396768 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4802Robert D. Dorn1987824236U.S.A.WyomingParkCody: Shoshone River.-109.067744.52831524Seep with Fraxinus and Ulmus. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5918Robert D. Dorn199566157U.S.A.WyomingHot Springs2 mi E of Lucerne.-108.146943.73941310Roadside with Bromus and Elaeagnus.RMRM600893 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5918Robert D. Dorn199566157U.S.A.WyomingHot Springs2 mi E of Lucerne.-108.146143.73481310Roadside with Bromus and Elaeagnus. Tree 12 in DBH. Phenology: fruiting.RMRM682084 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.594Steve Kettler1991726207U.S.A.WyomingConverseEastern Plains: East Fork of Twentymile Creek E of County Road 46.-104.947242.86511728Old growth Populus deltoides stand on terrace above stream channel; understory of Elymus smithii, Agropyron cristatum, Poa pratensis, and Artemisia cana. Phenology: vegetative only.RMRM681953 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.791Steve Kettler1991827239U.S.A.WyomingPlatteSoutheast Plains: Little Cottonwood Draw, ca 5 air mi E of the Laramie Power Station SE of the Greyrocks Road.-104.763842.11151384Open canopy Populus deltoides community on terrace above stream on sandy soil; understory of Salix amygdaloides, Artemisia cana, and Elymus smithii. Phenology: vegetative only.RMRM643696 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.903Steve Kettler199196249U.S.A.WyomingPlatteSoutheast Plains: south bank of Laramie River, ca 1 mi E of Uva and N of landfill.-104.900942.12591350Mature Populus deltoides with occasional Salix amygdaloides along old side channels and understory of Bromus inermis; on sandy-rocky soils of stream terrace. Phenology: vegetative only.RMRM366651 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.RH132Steve Kilpatrick J. L. Robinson198269160U.S.A.WyomingGoshenWyoming Game and Fish Department's Rawhide unit along the North Platte River, ca 3.3 air mi SE of Lingle, ca 6.8 air mi WNW of Torrington.-104.30642.10071250Wet bottom. Phenology: vegetative only.RMRM69135 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.457Vie Willits1910727208U.S.A.WyomingSheridanUpper Grove Ditch.-107.020344.67331310Scattering on streams and large ditches. Phenology: fruiting.RMRM580216 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.12629Walter Fertig1992531152U.S.A.WyomingFremontWind River Canyon: Boysen State Park: public beach adjacent to inlet on east shore of Boysen Reservoir, ca 4 air mi W of Bonneville.-108.12243.2781445Edge of sandy beach at base of rocky sandstone outcrop. Phenology: vegetative only.RMRM396768 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4802Robert D. Dorn1987824236U.S.A.WyomingParkCody: Shoshone River.-109.067744.52831524Seep with Fraxinus and Ulmus. Tree 7 in DBH. Phenology: vegetative only.RMRM600893 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5918Robert D. Dorn199566157U.S.A.WyomingHot Springs2 mi E of Lucerne.-108.146143.73481310Roadside with Bromus and Elaeagnus. Phenology: fruiting.RMRM99299 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.645Arthur C. McIntosh1924826239U.S.A.South DakotaMeadeLower Elk Canyon.-103.426244.270410541493Along streams, on plains. Phenology: vegetative only.RMRM267129 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.463C. L. Gilly G. W. Parmelee, Stella M. Wilson, and P. G. Coleman1953621172U.S.A.South DakotaJacksonBadlands National Monument: just inside east entrance, about 3 mi NE from Cedar Pass Lodge.-101.905943.7917792Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.254Cheryl Mayer200197250U.S.A.South DakotaPenningtonBlack Hills: Black Elk Wilderness: vicinity of Centennial Trail (#89) S of Mt. Rushmore spur, ca 1.9 air mi SSE of Horsethief Lake, ca 2.7 air mi SW of Keystone.-103.4643.86511487Paper birch, white spruce, quaking aspen, ponderosa pine; bottom area. Phenology: vegetative only.RMRM698980 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.254Cheryl Mayer200197250U.S.A.South DakotaPenningtonBlack Hills: Black Elk Wilderness: vicinity of Centennial Trail (#89) S of Mt. Rushmore spur, ca 1.9 air mi SSE of Horsethief Lake, ca 2.7 air mi SW of Keystone.-103.4643.86511487Paper birch, white spruce, quaking aspen, and ponderosa pine association; bottom area. Phenology: vegetative only.RMRM568155 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.10691Gary E. Larson James R. Johnson1991821233U.S.A.South DakotaMeadeBoulder Canyon, floodplain of Boulder Creek.-103.554444.41691085Gravelly and rocky terrace along base of rock dike on creek floodplain. Occasional. Phenology: vegetative only.RMRM110680 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.983Herman E. Hayward1927616167U.S.A.South DakotaPenningtonRapid City; Rapid Creek.-103.220444.0835975Creek bottom land; oak, willow, and elm association; mesophytic. Phenology: vegetative only.RMRM576205 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.24715Stanley L. Welsh Kaye H. Thorne1991530150U.S.A.South DakotaCusterWind Cave vicinity, 10 mi N of Hot Springs.-103.510843.600413381500Mid-grass prairie, on Trassic redbeds and prairie soil. Phenology: fruiting.RMRM69773 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.106S. S. Visher1910711192U.S.A.South DakotaHardingLittle Missouri River Valley: 25 mi N of Ashcroft. [ends up in North Dakota]-103.936545.94488841006Open woods. Phenology: vegetative only.RMRM76140 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2733S. S. Visher191184216U.S.A.South DakotaFall RiverPhenology: vegetative only.RMRM520887 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.DBeth Thebaud1984516137U.S.A.ColoradoKiowaNear riparian, adjacent to Highway 96.1179Dry, hard packed soil; disturbed area; near riparian. Phenology: flowering & fruiting.RMRM207505 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4274C. L. Porter1947711192U.S.A.ColoradoBacaSand Canyon, 25 mi S of Pritchett, near Oklahoma.1250Phenology: vegetative only.RMRM45219 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2303C. S. Crandall1897430120U.S.A.ColoradoLarimerFort Collins.Phenology: flowering & fruiting.RMRM45221 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2306C. S. Crandall1897427117U.S.A.ColoradoLarimerFort Collins.Phenology: flowering & fruiting.RMRM520891 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2Dave Rolph1984512133U.S.A.ColoradoKiowa1179Dry, hard packed soil in roadside turn around. Phenology: flowering.RMRM56753 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1529Francis Ramaley1906530150U.S.A.ColoradoBoulderNear Boulder.Phenology: fruiting.RMRM32542 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.656Francis Ramaley1901491U.S.A.ColoradoBoulderPhenology: vegetative only.RMRM43699 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5029Frank Tweedy19027182U.S.A.ColoradoBoulderNear Boulder.15241829Plains and foothills. Phenology: vegetative only.RMRM47707 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5614Frank Tweedy1903620171U.S.A.ColoradoGilpinEldora to Baltimore.25912896June 20th-July 10th, 1903 Phenology: flowering & fruiting.RMRM165970 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7694George E. Osterhout190064155U.S.A.ColoradoWeldNew Windsor.Phenology: fruiting.RMRM793908 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.86L. Blay N. E. Hastings2004825238U.S.A.ColoradoArapahoeBuckley Air Force Base: along east portion of Toll Gate Creek; west end of transect 1.03 km N of southwest corner of the installation. 521814E 4392633N to 521135E 4393532N to 521838E 4393672N to 521763E 4392804N to 521352E 4392921N to 521652E 4392921N.16971709Rolling to moderately sloped drainage in cottonwood/willow community on sandy to silt-like loam; with Salix exigua, A. amygdaloides, Populus deltoides ssp. monlifera, Artemisia ludoviciana, Opuntia polyacantha, Cirsium arvense, Asclepias speciosa, Nepeta. Phenology: vegetative only.RMRM339019 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4Mary Kay Brewster198172183U.S.A.ColoradoBoulderEldorado Springs State Park: South Boulder Creek: North Canyon Creek Trail: emergence from the canyon; S of Red Garden Wall.16761829Growing out of moist sandy soil in the parking lot near the creek. Phenology: vegetative only.RMRM793907 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.168N. E. Hastings C. BernU.S.A.ColoradoArapahoeBuckley Air Force Base: southeast end of transect 600 m NE of south gate entrance. 520320E 4394219N to 520287E 4394273N to 520270E 4394327N to 520291E 4394349N to 520283E 4394401N to 520231E 4394401N to 520035E 4394471N.1686Level to sloped cottonwood/willow (riparian) community on silt-like loam; with Salix exigua, Ribes aureum, Glycyrrhiza lepidota, Pascopyrum smithii, Rumex crispus, Cirsium arvense. Phenology: fruiting.RMRM45220 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2304no collector189867158U.S.A.ColoradoLarimerFort Collins.Phenology: vegetative only.RMRM45222 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2311no collector189792245U.S.A.ColoradoLarimerFort Collins.Phenology: buds.RMRM33542 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6364P. A. Rydberg F. K. Vreeland190058128U.S.A.ColoradoNo countyPlains near Denver.1500Phenology: flowering.RMRM741308 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9676Robert D. Dorn2003524144U.S.A.ColoradoSedgwickSouth Platte River at Julesberg.-102.25333340.9733331067River bottom with Bromus, Trifolium. Phenology: fruiting.RMRM529259 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.27Stacey J. Elder Kendra K. Ecton198757127U.S.A.ColoradoLincolnOn Highway 94 at Big Horse Creek.1628Cottonwood-willow river bottom; sandy soil. Phenology: flowering.RMRM734450 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2054Tim Hogan1993520140U.S.A.ColoradoLas AnimasMesa de Maya Region: Jesus Canyon.1554Plains riparian vegetation with Populus deltoides and several Salix spp. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4259Amy J. Roderick1998530150U.S.A.WyomingNatronaUpper North Platte and Laramie River Drainages: North Platte River at Bessemer Bend, ca 11.6 air mi SW from Casper.-106.531142.77341585Disturbed edges of river; saline conditions. Phenology: vegetative only.RMRM268122 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8982C. L. Porter Marjorie Porter1962418108U.S.A.New MexicoEddy5 mi S of Carlsbad Caverns on U.S. Hwy 180.945Dry washes, in the Covillea desert. Trees to 40 ft high. Phenology: vegetative only.RMRM932472 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.10282B. E. Nelson1983720201U.S.A.WyomingWashakieBighorn Basin: along Cottonwood Creek, ca 7.5 air mi WNW of Winchester; ca 20.5 air mi SW of Worland.-108.299243.88171371Creek bottom.RMRM297969 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1231B. E. Nelson Linda Nelson1975617168U.S.A.WyomingConversePowder River Basin: 5.7 mi NE of Douglas, off Wyo Hwy 59.-105.305342.81671524With Salix. 1 medium size tree growing along the stream. Phenology: fruiting.RMRM321570 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1281B. E. Nelson Linda Nelson1975619170U.S.A.WyomingCampbellPowder River Basin: 30.8 mi NNW of Gillette on U.S. Hwy 14-16, then 24.2 mi NNE on Recluse-Olmstead Creek Road, then 8.3 mi E on Olmstead Creek Road at the North Fork Olmstead Creek.-105.493944.92321097In clay in stream bottom with Rosa. Common; large trees. Phenology: fruiting.RMRM932471 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.13986B. E. Nelson1987628179U.S.A.WyomingBig HornBighorn Basin: W of Dry Creek, ca 4.5 air mi ENE of Frannie, ca 12 air mi NW of Lovell.-108.5316744.99581341Edge of small pond in bentonite badlands.RMRM932470 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.14114B. E. Nelson1987630181U.S.A.WyomingParkBighorn Basin: Shearing Pens Reservoir above West Branch Whistle Creek, ca 12 air mi SE of Powell.-108.6630644.600561341Flats near reservoir with Populus angustifolia and P. x acuminata.RMRM932469 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.14171B. E. Nelson1987630181U.S.A.WyomingBig HornBighorn Basin: along Coon Creek SW of Wyo Hwy 32, ca 9 air mi NW of Emblem, ca 17.5 air mi SW of Lovell.-108.5211144.59941310Stream bottom with scattered cottonwoods.RMRM932468 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.14185B. E. Nelson1987630181U.S.A.WyomingBig HornBighorn Basin: along Whistle Creek, ca 6 air mi SW of Byron, ca 12 air mi SW of Lovell.-108.5838944.716111280Wooded stream bottom. Phenology: flowering.RMRM932467 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.14875B. E. Nelson Erik Nelson1988527148U.S.A.WyomingWashakieBighorn Basin: along South Fork Fifteenmile Creek, ca 14 air mi WNW of Worland.-108.217244.07361310Sandy flats along creek with scattered cottonwoods.RMRM932466 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.14966B. E. Nelson Erik Nelson1988529150U.S.A.WyomingBig HornBighorn Basin: along Elk Creek on Dorsey Creek Road, ca 16 air mi WSW of Basin, ca 9 air mi SSW of Otto.-108.321944.276394400Sandy clay flats of flood plain.RMRM932465 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.15129B. E. Nelson Erik Nelson1988531152U.S.A.WyomingBig HornBighorn Basin: Snyder Reservoir #4 in Foster Gulch, ca 14 air mi S of Lovell.-108.378944.62811371In and around the reservoir.RMRM932464 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.15175B. E. Nelson Erik Nelson198862154U.S.A.WyomingParkBighorn Basin: around large reservoir on Big Sand Coulee, 10.5 air mi WNW of Powell, ca 7.5 air mi NW of Ralston.-108.9666744.804441356Shore of reservoir.RMRM932463 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.15692B. E. Nelson Erik Nelson1988612164U.S.A.WyomingWashakieBighorn Basin: Dry Cottonwood Creek just above Fifteenmile Creek, ca 20 air mi NW of Worland.-108.298144.160561341Upper end of reservoir.RMRM317452 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1612B. E. Nelson197862153U.S.A.WyomingNiobraraSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: ca 12.5 air mi NE of Lusk on north side of Hat Creek Breaks on Indian Creek.-104.22742.92861310In clay in riparian habitat. Common; trees to ca 12 m tall and 0.5 m DBH. Phenology: fruiting.RMRM607130 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.17350B. E. Nelson Jan Pollet1989719200U.S.A.WyomingPlatte[location and coordinates withheld]14321445Open cottonwood woodland on bench. Phenology: vegetative only.RMRM328388 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1980B. E. Nelson1978918261U.S.A.WyomingCampbellPowder River Basin: ca 39 air mi SSW of Gillette, ca 9 air mi E of Middle Pumpkin Buttes along Four Mile and South Branch Four Mile Creeks.-105.710543.75691509In the bottomland. Occasional. Phenology: vegetative only.RMRM328387 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2154B. E. Nelson1978920263U.S.A.WyomingCampbellPowder River Basin: ca 44 air mi N of Gillette, ca 5.5 air mi S of Montana along North Fork Olmstead Creek.-105.503344.91421128In loamy soil in bottomland with Juniperus. Frequent. Phenology: vegetative only.RMRM333765 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2751B. E. Nelson1979528148U.S.A.WyomingJohnsonPowder River Basin: ca 20 air mi N of Linch, ca 28 air mi NE of Kaycee, along Big Willow Creek, E of the Powder River on the Iragaray Ranch.-106.139243.90081310Sandy clay in stream bottom. Phenology: fruiting.RMRM332582 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3961B. E. Nelson1979717198U.S.A.WyomingJohnsonPowder River Basin: ca 6 air mi S of Kaycee on TTT Road (Lone Bear Road on map).-106.644443.62191463Bottomland. Phenology: vegetative only.RMRM332605 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3992B. E. Nelson1979717198U.S.A.WyomingJohnsonPowder River Basin: ca 7 air mi SSE of Kaycee on I-25, along the South Fork Powder River.-106.58543.62171402Slopes along the river. Phenology: vegetative only.RMRM932483 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5729B. E. Nelson1980617169U.S.A.WyomingBig HornBighorn Basin: Ziesman Canyon along Buffalo Creek, ca 6.5 air mi SE of Hyattville, ca 30 air mi SE of Basin.-107.5094444.17531463Stony, brushy slope. Phenology: flowering & fruiting.RMRM932482 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7025B. E. Nelson1980811224U.S.A.WyomingBig HornBighorn Basin: Big Horn Canyon National Recreation Area: on the Pryor Mountain Wild Horse Range, ca 10.5 air mi NE of Lovell, near Horseshoe Bend.-108.281444.96471158Marshy area and subirrigated area.RMRM932481 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7574B. E. Nelson198165156U.S.A.WyomingWashakieBighorn Basin: Six Mile Reservoir and vicinity, ca 12 air mi NNW of Worland; ca 9 air mi SW of Manderson.-108.071444.16031341Around the reservoir.RMRM932480 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7774B. E. Nelson198167158U.S.A.WyomingBig HornBighorn Basin: North Sheldon Gulch below Potato Ridge, ca 14 air mi ESE of Greybull.-107.814244.43641493Around a small reservoir.RMRM932479 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7845B. E. Nelson198169160U.S.A.WyomingWashakieBighorn Basin: East Fork Nowater Creek on Nowater Trail, ca 7.5 air mi S of Worland.-107.949743.91221280Plains above the creek.RMRM932478 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7980B. E. Nelson1981611162U.S.A.WyomingWashakieBighorn Basin: Green Bug Reservoir, ca 7.5 air mi SW of Ten Sleep on Blue Bank Road.-107.556943.94771493Disturbed areas.RMRM932477 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8236B. E. Nelson1981716197U.S.A.WyomingWashakieBighorn Basin: along Bud Kimball Creek, ca 7.5 air mi S of Tensleep, ca 4 air mi ESE of Castle Gardens.-107.4205643.92691402Flats above the creek.RMRM338404 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8430B. E. Nelson1981721202U.S.A.WyomingBig HornBighorn Basin: Owl Charco Reservoir, ca 18 air mi SW of Basin on Fifteenmile Creek Road.-108.2602844.17471371In the reservoir area. Phenology: flowering & fruiting.RMRM932475 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8454B. E. Nelson1981721202U.S.A.WyomingWashakieBighorn Basin: Rock Waterhole Reservoir, ca 22 air mi NW of Worland on Fifteenmile Creek Road.-108.338344.160561371Slopes around the reservoir.RMRM932474 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8566B. E. Nelson1981722203U.S.A.WyomingParkBighorn Basin: along the Greybull River between YU Bench and Sheets Flat, ca 23.5 air mi NE of Meeteetse.-108.6830644.33531524Wooded river bottom.RMRM932473 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8637B. E. Nelson1981723204U.S.A.WyomingHot SpringsBighorn Basin: along the Big Horn River, ca 7 air mi NNE of Thermopolis; ca 1 air mi ENE of Lucerne.-108.156543.74681310Sandy flats above the river.RMRM388861 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4091June Haines1985611162U.S.A.WyomingFremontWind River Basin: west side of Ocean Lake.-108.646143.19315951610Bank of shallow drainage. Phenology: vegetative only.RMRM388862 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4121June Haines1985611162U.S.A.WyomingFremontWest side of Ocean Lake.-108.626443.17851599Moist depression surrounding drainage. Phenology: vegetative only.RMRM388863 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4893June Haines1985718199U.S.A.WyomingFremontWind River Basin: Lake Cameahwait, ca 20 air mi ENE of Riverton, south side of appraoch of Cottonwood Drain to Lake Cameahwait.-108.271343.294314721484Moist area adjacent to creek bank. Phenology: vegetative only.RMRM388864 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4909June Haines1985718199U.S.A.WyomingFremontWind River Basin: aquiduct on south side of Lake Cameahwait, ca 20 air mi ENE of Riverton.-108.251543.294314661472Moist area beside running water. Phenology: vegetative only.RMRM388865 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4943June Haines1985718199U.S.A.WyomingFremontWind River Basin: Boysen Reservoir, ca 23.5 air mi ENE of Riverton, south side of Cottonwood Bay. Elev 4730-4740 ft.-108.212143.33781442Sandy beach. Phenology: vegetative only.RMRM388866 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4975June Haines1985722203U.S.A.WyomingFremontWind River Basin: Boysen Reservoir, ca 23.5 air mi NE of Riverton, west end of Cottonwood Bay.-108.251543.352314391451Edge of alkali beach. Phenology: vegetative only.RMRM388867 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5013June Haines1985722203U.S.A.WyomingFremontWind River Basin: west side of Boysen Reservoir, ca 20 air mi ENE of Riverton, Sandy Hills Loop.-108.212143.265414391452Edge of sandy beach. Phenology: vegetative only.RMRM388868 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5290June Haines Georgia Haines198584216U.S.A.WyomingFremontGreen Mountain Park, West Fork Middle Cottonwood Creek, ca 9.5 air mi SSE of Jeffrey City.-107.727442.38323782500Slopes above creek. Phenology: vegetative only.RMRM388869 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5848June Haines198591244U.S.A.WyomingFremontMuddy Creek: ca 7.5 air mi NW of Shoshone.-108.231843.27991440Edge of creek floodplain. Phenology: vegetative only.RMRM328380 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1396Keith H. Dueholm Ronald L. Hartman1978525145U.S.A.WyomingCampbellPowder River Basin: ca 5.5 road mi N of Soda Wells.-105.3197244.70811158Sagebrush plains, near old cement structure and gulch. Single individual. Phenology: fruiting.RMRM328358 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1667Keith H. Dueholm Ronald L. Hartman1978530150U.S.A.WyomingCampbell[location and coordinates withheld]1585Roadside, right-of-way, plains, and small creek, intermittent at this locale; near stream. Phenology: vegetative only.RMRM328353 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1832Keith H. Dueholm Ronald L. Hartman197864155U.S.A.WyomingCampbellPowder River Basin: Wild Horse Creek, Echeta Road, ca 3/4 road mi N of Croton.-105.950344.526111189Edge of creek and floodplain; draw near creek bottom. Phenology: vegetative only.RMRM328357 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2412Keith H. Dueholm Ronald L. Hartman and Mary Alice Sanguinetti.1978621172U.S.A.WyomingCampbell[location and coordinates withheld]1189Floodplain, flats, eroded ridge and sagebrush plains east of creek; along creek. Phenology: fruiting.RMRM328354 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3118Keith H. Dueholm1978628179U.S.A.WyomingCampbellPowder River Basin: Fletcher Canyon.-105.997743.61191463Dissected plain and open canyon slopes; canyon bottom. Phenology: vegetative only.RMRM328362 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3879Keith H. Dueholm Mary Alice Sanguinetti1978710191U.S.A.WyomingCampbellPowder River Basin: ca 20 air mi N of Spotted Horse.-105.867544.99751128Pine covered ridges, ravines, loose talus slopes, grassland, slopes. Phenology: vegetative only.RMRM328384 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3989Keith H. Dueholm Mary Alice Sanguinetti1978711192U.S.A.WyomingCampbell[location and coordinates withheld]1463Plains, draw, eroded slopes; ravine, draw. Phenology: vegetative only.RMRM328385 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4258Keith H. Dueholm Mary Alice Sanguinetti1978714195U.S.A.WyomingCampbell[location and coordinates withheld]1432Plains, flats, along draw; along streambed. Phenology: vegetative only.RMRM328371 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4290Keith H. Dueholm Mary Alice Sanguinetti1978715196U.S.A.WyomingCampbell[location and coordinates withheld]1432Plains, draw, eroded slopes, sandy roadcuts; draw. Phenology: vegetative only.RMRM328375 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4460Keith H. Dueholm1978722203U.S.A.WyomingCampbell[location and coordinates withheld]1310Holding pond, flats; pond margin. Phenology: vegetative only.RMRM328386 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4661Keith H. Dueholm1978723204U.S.A.WyomingCampbellPowder River Basin: ca 4 air mi ENE of Adonis.-105.182544.51861250Sagebrush plains, ponderosa pine slopes, ravines, eroded slopes, creek bottom; creek bottom. Phenology: vegetative only.RMRM328368 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5262Keith H. Dueholm1978729210U.S.A.WyomingJohnsonPowder River Basin: along Willow Creek, ca 3 air mi NW of North Pumpkin Butte.-106.015643.81432Plains, flats along creek, eroded banks; flats. Phenology: vegetative only.RMRM328382 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5441Keith H. Dueholm197885217U.S.A.WyomingCampbellPowder River Basin: along Dry Fork Spring Creek, ca 3.5 air mi NE of Soda Wells.-105.259444.67811189Sagebrush plains, draw, bottoms along creek, cottonwood, plum thickets; bottoms. Phenology: vegetative only.RMRM328379 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5638Keith H. Dueholm197887219U.S.A.WyomingJohnson[location and coordinates withheld]1341Drainage in ditches; ditch. Phenology: vegetative only.RMRM328369 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5799Keith H. Dueholm197888220U.S.A.WyomingCampbell[location and coordinates withheld]1432Plains, small draw; draw. Phenology: vegetative only.RMRM328372 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5907Keith H. Dueholm1978810222U.S.A.WyomingJohnsonPowder River Basin: ca 19 air mi NE of Buffalo.-106.350844.493061280Wooded draw, plains; draw. Phenology: vegetative only.RMRM328355 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6113Keith H. Dueholm1978825237U.S.A.WyomingCampbellPowder River Basin: Dry Trail Creek, along Trail Creek Road, 3.8 road mi E of Wyo Hwy 59.-105.279444.975561097Sandy cuts in plains, small stream and draw; along stream. Phenology: vegetative only.RMRM334079 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6534Keith H. Dueholm197965156U.S.A.WyomingJohnson[location and coordinates withheld]1432Greasewood flats along river. Phenology: fruiting.RMRM332611 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7359Keith H. Dueholm1979623174U.S.A.WyomingNiobrara[location and coordinates withheld]1219Deep draw. Phenology: vegetative only.RMRM332606 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9042Keith H. Dueholm1979812224U.S.A.WyomingSheridanPowder River Basin: Prairie Dog Creek, along Wyo Hwy 336, ca 2 air mi E of Sheridan.-106.9019444.82751128Meadows and willow thickets along creek; meadows. Phenology: vegetative only.RMRM332609 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.10135Ronald L. Hartman1979713194U.S.A.WyomingJohnsonPowder River Basin: ca 3 air mi W of Kaycee.-106.703643.70811463Shale slopes with sandstone outcrops and drainages. Phenology: vegetative only.RMRM932462 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.11098Ronald L. Hartman Keith H. Dueholm1980524145U.S.A.WyomingBig HornBighorn Basin: U.S. Hwy 16-20, 5.7 mi S of Basin.-108.040644.32031189Eroded shaley slopes with scattered cottonwoods and irrigation ditch. No elevation listed in field notebook.RMRM932461 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.14413Ronald L. Hartman John Hamann1983524144U.S.A.WyomingParkBighorn Basin: Cottonwood Creek: ca 5 air mi NW of Frannie.-108.7136144.996713711432Sandstone outcrops with some shale in drainage.RMRM388870 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.19960Ronald L. Hartman June Haines1985528148U.S.A.WyomingFremontWind River Basin: Cottonwood Creek, 7 air mi NE of Lysite.-107.603943.349416461707Creek bottom. Phenology: vegetative only.RMRM328361 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5220Ronald L. Hartman Keith Dueholm1978521141U.S.A.WyomingConversePowder River Basin: Wyo Hwy 59, ca 20 mi N of Douglas.-105.266443.03471493Along stream. Common, trees to 25 m tall. Phenology: vegetative only.RMRM328381 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5463Ronald L. Hartman Keith Dueholm1978525145U.S.A.WyomingCampbellPowder River Basin: Soda Wells.-105.3002844.649171128Disturbed flats dissected by stream with pond from runoff from well; near pond. Phenology: vegetative only.RMRM328373 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5538Ronald L. Hartman Keith Dueholm1978526146U.S.A.WyomingCampbellPowder River Basin: ca 2.3 mi S of Montana.-105.1977844.97531158Pond and valley to the east; near pond. Phenology: vegetative only.RMRM328360 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5818Ronald L. Hartman Keith Dueholm197863154U.S.A.WyomingConversePowder River Basin: Wyo Hwy 59 at South Fork Cheyenne River.-105.345843.31171402Rolling plains dissected by river. Phenology: fruiting.RMRM328366 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5968Ronald L. Hartman Keith Dueholm197864155U.S.A.WyomingCampbellPowder River Basin: Echeta Road, ca 2 air mi SE of Echeta.-105.84544.42421250Eroded slopes, flats, and river bottoms; river bottom. Phenology: fruiting.RMRM328364 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6160Ronald L. Hartman Keith Dueholm197866157U.S.A.WyomingCampbellPowder River Basin: near the Powder River, ca 17 air mi NNW of Spotted Horse.-105.973644.920831097Eroded hills overlooking river; near river. Phenology: vegetative only.RMRM328365 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6249Ronald L. Hartman Keith Dueholm197867158U.S.A.WyomingCampbellPowder River Basin: 3 mi N of Four Corners.-105.5422244.836111189Stream margin. Phenology: fruiting.RMRM328370 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6365Ronald L. Hartman197868159U.S.A.WyomingCampbellPowder River Basin: ca 19 air mi SE of Gillette.-105.250844.08081402Eroded slopes near wash and roadside. Phenology: vegetative only.RMRM328377 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6650Ronald L. Hartman Keith Dueholm and Mary Alice Sanguinetti1978620171U.S.A.WyomingConversePowder River Basin: ca 12.5 air mi NE of Bill.-105.145343.40111371Flood plain. Phenology: fruiting.RMRM328363 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6852Ronald L. Hartman Keith Dueholm and Mary Alice Sanguinetti1978621172U.S.A.WyomingCampbellPowder River Basin: ca 19 air mi NNE of Gillette.-105.3427844.54721189Low eroded slopes and drainage. Phenology: fruiting.RMRM328383 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7210Ronald L. Hartman Keith Dueholm and Mary Alice Sanguinetti1978624175U.S.A.WyomingCampbellPowder River Basin: Eighty-five Divide, ca 10 air mi W of Rockypoint.-105.300644.9171097Hills with eroded drainage and sandstone outcrops. Phenology: vegetative only.RMRM328367 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7341Ronald L. Hartman Mary Alice Sanguinetti1978625176U.S.A.WyomingCampbellPowder River Basin: along Dead Horse Creek, ca 19 air mi WSW of Gillette.-105.844244.19171402Creek bottom and adjacent slopes. Phenology: vegetative only.RMRM328378 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7381Ronald L. Hartman Mary Alice Sanguinetti1978626177U.S.A.WyomingJohnsonPowder River Basin: ca 0.5 mi N of I-90 at the Powder River.-106.1466744.221402Bottom land along river and roadside. Phenology: vegetative only.RMRM607131 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.24802B. E. Nelson1993517137U.S.A.WyomingNatronaSouthern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Coal Draw between Salt Creek and County Road 116, ca 2.5 air mi N of Midwest.-106.281743.450814541457Bench along creek with Sarcobatus and Tamarix thickets. Phenology: fruiting.RMRM607110 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.24833B. E. Nelson1993519139U.S.A.WyomingPlatte[location and coordinates withheld]13171341Thickets along overflow channel. Phenology: vegetative only.RMRM607111 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.24868B. E. Nelson1993519139U.S.A.WyomingGoshenSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: off Sheep Creek or County Road 43, ca 3.5-4 air mi ENE of Torrington.-104.104142.07812801295Along irrigation ditch and in old playa in stabilized sand dunes. Phenology: fruiting.RMRM607112 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.27102B. E. Nelson1993719200U.S.A.WyomingGoshen[location and coordinates withheld]13501356Roadside and fence line. Phenology: vegetative only.RMRM607113 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.27335B. E. Nelson1993723204U.S.A.WyomingConverse[location and coordinates withheld]1518Cottonwood woodland with Elaeagnus and Shepherdia, with P. acuminata and P. augustifolia. Phenology: vegetative only.RMRM607114 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.27600B. E. Nelson1993726207U.S.A.WyomingPlatteSouthern Powder River Basin/Southeastern Plains: Hartville Uplift: along North Platte River ca 0.6-0.8 air mi SE of Guernsey Dam, ca 1 air mi NW of Guernsey.-104.763342.28513231341River bank. Phenology: vegetative only.RMRM607115 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.27884B. E. Nelson1993730211U.S.A.WyomingConverseSouthern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Walker Creek just N of Manning or County Road 53, ca 20 air mi NE of Douglas.-105.082543.052514291445Floodplain meadows and sparsely wooded stream banks. Phenology: vegetative only.RMRM607116 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.27929B. E. Nelson1993730211U.S.A.WyomingConverseSouthern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Walker Creek or County Road 43 on the divide between Walker and Lightning creeks, ca 17.5 air mi SE of Bill; ca 29.5 air mi NE of Douglas.-104.982543.083314021439Rolling rough breaks-badland with scattered ponderosa pine. Phenology: vegetative only.RMRM607117 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.27961B. E. Nelson1993730211U.S.A.WyomingConverseSouthern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Dry Creek ca 0.5 mi above and N of Lightning Creek, ca 0.5 air mi W of Niobrara County on Walker Creek or County Road 43, ca 29.5 air mi NE of Douglas.-104.904243.17111310Edge of stream channel and adjacent steep banks. Phenology: vegetative only.RMRM607118 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.27998B. E. Nelson1993730211U.S.A.WyomingNiobraraSouthern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Deep Creek on Field or County Road 50 SE of Cow Creek Buttes, ca 17 air mi NW of Lance Creek, ca 30.5 air mi NW of Lusk.-104.890843.2113411356Sand bars, flats, and low benches along stream channel. Phenology: vegetative only.RMRM607119 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.28015B. E. Nelson1993730211U.S.A.WyomingConverse[location and coordinates withheld]1371Moist meadows and banks of reservoir. Phenology: vegetative only.RMRM607120 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.28217B. E. Nelson199383215U.S.A.WyomingNiobrara[location and coordinates withheld]14481454Shores of the reservoir. Phenology: vegetative only.RMRM607121 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.28537B. E. Nelson1993817229U.S.A.WyomingLaramieSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: along Bear Creek on Marsh or County Road 245-1, ca 3/4 mi W of (upside down V)X Ranch, ca 25.5 air mi ENE of Iron Mountain (Farthing); ca 35 air mi N of Cheyenne.-104.7451941.6337816461670Scattered along the stream. Phenology: vegetative only.RMRM607122 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.28982B. E. Nelson1993822234U.S.A.WyomingConverseSouthern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along a tributary of Twentymile Creek on Manning or County Road 53, ca 24.5 air mi NE of Douglas; ca 14 air mi N of Lost Springs.-104.962542.96671463Benches and banks along drainage channel. Phenology: vegetative only.RMRM607123 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.29026B. E. Nelson1993822234U.S.A.WyomingNiobraraSouthern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Lance Creek off Lance Creek or County Road 14, ca 7.3 air mi N of Lance Creek; ca 27.5 air mi NNW of Lusk.-104.61743.137812711280Flats along the creek and draws. Phenology: vegetative only.RMRM607124 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.29175B. E. Nelson1993825237U.S.A.WyomingNatrona[location and coordinates withheld]1560Thickets and dense stands of Russian olive, boxelder, cottonwood, and willow. Phenology: vegetative only.RMRM607125 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.29241B. E. Nelson1993826238U.S.A.WyomingConverseSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: along the North Platte River ca 0.5-0.8 mi above the mouth of Wagon Hound Creek, ca 6.8 air mi S of Douglas.-105.372542.65691445Wet area in old overflow channel and thickets along the edges. Phenology: vegetative only.RMRM607126 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.29355B. E. Nelson1993826238U.S.A.WyomingConverse[location and coordinates withheld]1503Thickets along the river. Phenology: vegetative only.RMRM607127 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.29514B. E. Nelson1993829241U.S.A.WyomingNiobraraSouthern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Indian Creek off Hat Creek or County Road 64, ca 16 air mi NE of Lusk; ca 19.8 air mi NW of Van Tassell.-104.227342.928713041310Flats in the stream bottom and along the stream. Phenology: vegetative only.RMRM607128 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.29575B. E. Nelson1993831243U.S.A.WyomingGoshenSouthern Powder River Basin/Southeastern Plains: Goshen Hole: along North Platte River just below mouth of Laramie River, at east edge of Fort Laramie National Historic Site, ca 1.3 air mi SSW of Fort Laramie; ca 20 air mi WNW of Torrington.-104.529642.196512861292Cottonwood woodland in the river bottom. Phenology: vegetative only.RMRM607100 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.29654B. E. Nelson1993831243U.S.A.WyomingGoshenSouthern Powder River Basin/Southeastern Plains: Goshen Hole: along the North Platte River on London Flats, ca 2.2 air mi S of Lingle, ca 9.5 air mi WNW of Torrington.-104.356642.10721262Thickets in the river bottom. Phenology: vegetative only.RMRM607129 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.29708B. E. Nelson1993923266U.S.A.WyomingLaramie[location and coordinates withheld]14811512Creek bottom. Phenology: vegetative only.RMRM607132 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.29759B. E. Nelson1993924267U.S.A.WyomingGoshenSouthern Powder River Basin/Southeastern Plains: Goshen Hole: Wyoming Game and Fish Table Mountain Wildlife Habitat Management Area: ca 2 mi W of Table Mountain; ca 8.5 air mi NE of Hawk Springs; ca 14.5 air mi S of Torrington.-104.144841.85791265On a ditch bank. Phenology: vegetative only.RMRM607133 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.29887B. E. Nelson1993927270U.S.A.WyomingGoshenSouthern Powder River Basin/Southeastern Plains: Hartville Uplift: along Whalen Canyon Road ca 3/4 mi NE of Hell Gap, ca 14.5 air mi NW of Fort Laramie; ca 33 air mi NW of Torrington.-104.634142.40441493Rocky dry wash. Phenology: vegetative only.RMRM607134 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.29926B. E. Nelson1993929272U.S.A.WyomingNiobrara[location and coordinates withheld]14631524Road banks along abandoned highway. Phenology: vegetative only.RMRM607135 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.29949B. E. Nelson1993929272U.S.A.WyomingNiobrara[location and coordinates withheld]1256Creek bottom. Phenology: vegetative only.RMRM607136 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.29967B. E. Nelson1993929272U.S.A.WyomingNiobrara[location and coordinates withheld]1109Along the creek. Phenology: vegetative only.RMRM607137 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.30022B. E. Nelson1993101274U.S.A.WyomingConverseSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: along the North Platte River above Glendo Reservoir, ca 5.3 air mi SE of Orin; ca 18.3 air mi SE of Douglas.-105.098142.613614111414Low floodplain along the river. Phenology: vegetative only.RMRM600141 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.30071B. E. Nelson1993101274U.S.A.WyomingPlatteSouthern Powder River Basin/Southeastern Plains: Hartville Uplift: Sandy Beach along Guernsey Reservoir in Guernsey State Park, ca 4 air mi NW of Guernsey.-104.802842.31391353Shores of the reservoir. Phenology: vegetative only.RMRM705881 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.30500B. E. Nelson1994519139U.S.A.WyomingPlatteSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: along Fletcher Park or County Road 133 ca 3/4 air mi N of North Laramie River, ca 23 air mi WSW of Guernsey; ca 14 air mi NW of Wheatland.-105.199242.168614751493Fine gravels in bed of dry wash and slopes. Phenology: vegetative only.RMRM705880 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.31745B. E. Nelson1994619170U.S.A.WyomingNatronaSouthern Powder River Basin/Southeastern Plains: Southern Powder River Basin: ca 1/4-0.5 mi WNW of Big Sulfer Spring, ca 20 air mi NE of Powder River; ca 40 air mi NW of Casper.-106.837343.293217071762Along shaly, saline stream channel in the bottom of a narrow canyon. Phenology: vegetative only.RMRM705879 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.31906B. E. Nelson1994621172U.S.A.WyomingConverseSouthern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Cow Creek and the north end of Cow Creek Buttes, ca 15 air mi ENE of Bill; ca 43 air mi NE of Douglas.-104.970843.312613811384Low benches and old stream bars. Phenology: vegetative only.RMRM705878 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.32025B. E. Nelson1994621172U.S.A.WyomingConverseSouthern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Lake Creek and the buttes to the SE ca 6 air mi SW of Dull Center; ca 45.5 air mi NNE of Douglas.-105.090243.384613531356Stream bottom. Phenology: vegetative only.RMRM705877 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.32039B. E. Nelson David Reilly1994623174U.S.A.WyomingGoshenSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: Fort Laramie National Historic Site: along the Laramie River ca 0.5 mi E of the old fort, ca 1.7 air mi SW of Fort Laramie (town); ca 21 air mi NW of Torrington.-104.547342.20251289Cottonwood woodland in the river bottom. Phenology: vegetative only.RMRM705876 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.32908B. E. Nelson1994715196U.S.A.WyomingConverseSouthern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Box Creek just below Bobby Draw off Highland Loop or County Road 32, ca 12.7 air mi SW of Bill; ca 22 air mi N of Douglas.-105.384443.080814931500Stream bank and adjacent moist areas. Phenology: vegetative only.RMRM705875 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.32971B. E. Nelson1994718199U.S.A.WyomingConverseSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: along Lost Creek at U.S. Hwy 18-20 just ESE of Lost Springs, ca 23 air mi E of Douglas.-104.921242.76181487Stream bottom with willows. Phenology: vegetative only.RMRM705874 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.33322B. E. Nelson Timothy W. Chumley and Robbin Romberg199482214U.S.A.WyomingGoshenSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: along Bear Creek ca 0.5 mi below the mouth of Spring Run, ca 17.3 air mi W of LaGrange; ca 33 air mi SSW of Torrington.-104.4941.62731515Woodland in the stream bottom. Phenology: vegetative only.RMRM705873 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.33754B. E. Nelson Tim Chumley and Robbin Romberg1994810222U.S.A.WyomingConverseSouthern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Sand Creek ca 1/4 mi W of Hornbuckle Draw, ca 46 air mi NNW of Douglas; ca 25 air mi WNW of Bill.-105.729143.37881542In the stream bottom. Scattered. Phenology: vegetative only.RMRM705872 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.33818B. E. Nelson Tim Chumley and Robbin Romberg1994811223U.S.A.WyomingPlatteSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: along Richeau Creek between I-25 and Wyo Hwy 314, ca 3/4 air mi W to 1.5 air mi WSW of Slater; ca 14 air mi SSE of Wheatland.-104.837741.86415301548Creek bottom and adjacent areas. Phenology: vegetative only.RMRM705871 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.33865B. E. Nelson Tim Chumley and Robbin Romberg1994811223U.S.A.WyomingPlatteSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: along Chugwater Creek, ca 0.5 air mi N of Bordeaux, ca 9.5 air mi SE of Wheatland.-104.837741.93731475Creek banks and adjacent areas. Phenology: vegetative only.RMRM705870 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.34216B. E. Nelson1994821233U.S.A.WyomingConverseSouthern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Antelope Creek and Ross or County Road 31, ca 31 air mi WNW of Bill, ca 50.5 air mi NNW of Douglas, ca 3.5 air mi SE of Ross.-105.82843.421615571573Moist meadows in the valley bottom. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.34253B. E. Nelson1994821233U.S.A.WyomingConverseSouthern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Antelope Creek and Ross or County Road 31, ca 31 air mi WNW of Bill; ca 50.5 air mi NNW of Douglas; ca 3.5 air mi SE of Ross.-105.509643.39915601567Stream bottom. Phenology: vegetative only.RMRM705869 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.34253B. E. Nelson1994821233U.S.A.WyomingConverseSouthern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Sand Creek off Jenne Trail or County Road 34, ca 16.5 air mi NW of Bill, ca 44.5 air mi N of Douglas.-105.509643.39914451451Stream bottom. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5918Robert D. Dorn199566157U.S.A.WyomingHot Springs2 mi E of Lucerne.-108.146943.73941310Roadside with Bromus and Elaeagnus.RMRM607141 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.39095Ronald L. Hartman1993629180U.S.A.WyomingConverse[location and coordinates withheld]14631493Sandy plains and road cut. Phenology: vegetative only.RMRM607142 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.39330Ronald L. Hartman199371182U.S.A.WyomingConverse[location and coordinates withheld]14631493River margin and banks. Phenology: vegetative only.RMRM607143 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.39442Ronald L. Hartman199371182U.S.A.WyomingPlatte[location and coordinates withheld]14931524Stream bed and sandy plains. Phenology: vegetative only.RMRM607144 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.39930Ronald L. Hartman199374185U.S.A.WyomingPlatte[location and coordinates withheld]1493Calcareous slopes and sandy flats. Phenology: vegetative only.RMRM607145 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.39956Ronald L. Hartman199374185U.S.A.WyomingPlatteSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: Johnson Reservoir 3, ca 6 air mi NNW of Wheatland.-104.99542.12561371Sandy slopes and lake margin. Phenology: vegetative only.RMRM607146 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.40121Ronald L. Hartman199374185U.S.A.WyomingConverse[location and coordinates withheld]1432Sandy soil along river and railroad. Phenology: vegetative only.RMRM607147 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.40815Ronald L. Hartman1993711192U.S.A.WyomingGoshenSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: Goshen Hole Rim: Mers Hill, ca 10 air mi E of Slater.-104.61541.878914321509Sandstone outcrops and sandy slopes. Phenology: vegetative only.RMRM607148 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.40851Ronald L. Hartman1993711192U.S.A.WyomingPlatteSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: Wyo Hwy 34 and I-25 interchange, ca 7 mi S of Wheatland.-104.951741.96751493Sandy slopes and stream bottom. Phenology: vegetative only.RMRM705868 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.321Timothy W. Chumley1994824236U.S.A.WyomingGoshenSouthern Powder River Basin/Southeastern Plains: Goshen Hole: along Horse Creek ca 5 air mi N of Hawk Springs; ca 13.5 air mi SSW of Torrington.-104.260141.866912921295Along sandy-clay shores of heavily grazed creek. Phenology: vegetative only.RMRM705867 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.421Timothy W. Chumley1994826238U.S.A.WyomingGoshenSouthern Powder River Basin/Southeastern Plains: Goshen Hole: along Bear Creek ca 1 air mi W of Wyo Hwy 151 crossing, ca 10 air mi S of Hawk Springs, ca 46 air mi NE of Cheyenne.-104.232841.63914541457Along wooded and entrenched stream with steep to vertical banks. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1017Brian Elliott Kenneth Elliott199864155U.S.A.ColoradoLas AnimasWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Purgatoire River; E on County Road 75 from Exit 18 on I-25.-104.457437.21461789Riparian. Phenology: fruiting.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5656Amy J. Roderick1998627178U.S.A.WyomingNatronaUpper North Platte and Laramie River Drainages: Platte River Parkway, ca 0.3 air mi N of Wyo Hwy 220; ca 1 air mi S of Mills.-106.371942.82921554Thickets along river and adjacent gravelly areas; canary grass common. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1375Brian Elliott1998610161U.S.A.ColoradoLas Animas[location and coordinates withheld]1951Prairie, pinyon-juniper, and riparian. Phenology: fruiting.RMRM607099 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.12247B. E. Nelson1984923267U.S.A.WyomingWeston[location and coordinates withheld]1128Roadsides and flats. Phenology: vegetative only.RMRM380978 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9016B. E. Nelson1982712193U.S.A.WyomingCrookBlack Hills: Little Missouri River Breaks: ca 14 air mi N of Hulett; ca 33.5 air mi NNW of Sundance.-104.528944.87311219Disturbed areas. Phenology: vegetative only.RMRM380979 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9095B. E. Nelson1982712193U.S.A.WyomingCrookBlack Hills: Just E of Colony on U.S. 212; ca 34 air mi N of Sundance in Daly Creek drainage.-104.1216744.8575990Pond margin. Phenology: vegetative only.RMRM380965 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1480Hollis Marriott Dennis Horning1982719200U.S.A.WyomingCrook[location and coordinates withheld]1548Roadside on rocky (Minnekahta limestone) soil. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1647Brian Elliott1998613164U.S.A.ColoradoFremontWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: on County Road 1A, ca 0.5 mi from south edge of Cotopaxi.-105.684538.36222012Pinyon. Phenology: vegetative only.RMRM380966 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2883Hollis Marriott1983610161U.S.A.WyomingCrook[location and coordinates withheld]1097Along creek. Phenology: vegetative only.RMRM380967 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3044Hollis Marriott1983615166U.S.A.WyomingCrook[location and coordinates withheld]1310Deciduous thicket in draw. Phenology: vegetative only.RMRM380968 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3172Hollis Marriott1983615166U.S.A.WyomingCrook[location and coordinates withheld]1371Grassland. Phenology: vegetative only.RMRM380969 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3457Hollis Marriott1983623174U.S.A.WyomingCrookBlack Hills: Keyhole Reservoir near campground SE of dam, ca 11.8 air mi NE of Moorcroft.-104.769444.376391280Disturbed soil along lake margin. Phenology: vegetative only.RMRM380970 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3929Hollis Marriott198375186U.S.A.WyomingCrookBlack Hills: between Goldie Road and Elkhorn Creek, ca 6 air mi WNW of Seely.-104.7458344.825561158Margins of cattail marsh in sagebrush-grassland. Phenology: vegetative only.RMRM380971 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4841Hollis Marriott1983721202U.S.A.WyomingCrookBlack Hills: Keyhole Reservoir, south side W of Coulter Bay, ca 10 air mi NE of Moorcroft.-104.8144.36221250Disturbed sandy soil along lake margin. Phenology: vegetative only.RMRM380972 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4904Hollis Marriott1983721202U.S.A.WyomingCrookBlack Hills: Keyhole Reservoir, Belle Fourche River below dam; ca 12 air mi NE of Moorcroft.-104.7897244.39081219Disturbed soil of picnic area and dirt road. Phenology: vegetative only.RMRM380973 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5210Hollis Marriott1983728209U.S.A.WyomingCrookBlack Hills, crooked south draw near old U. S. Hwy 14, ca 3.5 air mi W of Beulah.-104.162844.54161158Grassland (highway right-of-way). Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1953Brian Elliott1998616167U.S.A.ColoradoLas Animas[location and coordinates withheld]1920Riparian; pinyon-juniper. Phenology: vegetative only.RMRM380974 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5865Hollis Marriott1983829241U.S.A.WyomingCrookBlack Hills: Belle Fourche River near Mona, ca 14.5 air mi NNE of Hulett.-104.405344.84361067Disturbed grassland near river. Phenology: vegetative only.RMRM380975 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6471Hollis Marriott198464156U.S.A.WyomingWestonBlack Hills: Stockade Beaver Creek drainage between Sherwood and Sheldon Canyons; ca 6 air mi ENE of Newcastle.-104.0858343.878891402Roadside near creek (below spring). Phenology: vegetative only.RMRM380976 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8797Hollis Marriott Dennis Horning198488221U.S.A.WyomingWestonBlack Hills: Elk Mountain area, Clifton Canyon above confluence with Lost Canyon, ca 13.5 air mi SSE of Newcastle.-104.070543.66221371Canyon bottom -- ponderosa pine forest with chokecherry thickets. Phenology: vegetative only.RMRM380977 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9027Hollis Marriott1984814227U.S.A.WyomingWeston[location and coordinates withheld]1493Reservoir in sagebrush (Artemisia tridentata) - grassland on dam. Phenology: vegetative only.RMRM328356 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2281Keith H. Dueholm Ronald L. Hartman and Mary Alice Sanguinetti.1978620171U.S.A.WyomingWestonPowder River Basin: along Cheyenne River; ca 6 air mi SE of Rochelle.-104.886343.50381280Floodplain, greasewood flats; flats. Phenology: vegetative only.RMRM328374 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5004Keith H. Dueholm1978726207U.S.A.WyomingCrookPowder River Basin: near Little Missouri River, ca 8 air mi NNE of New Haven.-104.8019444.85671128Plains, flats near river, muddy margins of large holding pond; depression along ditch. Phenology: vegetative only.RMRM332608 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7326Keith H. Dueholm1979623174U.S.A.WyomingWeston[location and coordinates withheld]1189Flats along creek, muddy creek margins; along creek. Phenology: vegetative only.RMRM380980 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.15828Ronald L. Hartman1983711192U.S.A.WyomingCrookPowder River Basin: Little Missouri River: ca 21 air mi NNE of Hulett.-104.4847244.97441067River bottoms, hay field margins, and ash woodlands; river bottom. Phenology: vegetative only.RMRM380981 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.16201Ronald L. Hartman1983715196U.S.A.WyomingCrookBlack Hills: ca 2 air mi NE of Aladdin.-104.159244.65671097Prairie, sandstone outcrops, and dry drainage; stream banks. Phenology: vegetative only.RMRM380982 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.16428Ronald L. Hartman1983716197U.S.A.WyomingCrookBlack Hills: ca 3 air mi NNE of Beulah.-104.057844.583061067Prairie and breaks with dry stream; streamside. Phenology: vegetative only.RMRM328376 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6710Ronald L. Hartman Keith Dueholm and Mary Alice Sanguinetti1978620171U.S.A.WyomingWestonPowder River Basin: just N of Cheyenne River, ca 7 air mi SSE of Rochelle.-104.906143.51831280Hills. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2709Brian Elliott1998627178U.S.A.ColoradoLas Animas[location and coordinates withheld]1951Top of hill to east; pinyon-juniper. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.312Brian Elliott1998527147U.S.A.ColoradoLas AnimasWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Trinidad Lake State Park: on Colo Hwy 12, W of Trinidad.-104.566237.14181890Pinyon and riparian. Phenology: fruiting.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.76384B. E. Nelson2008815228U.S.A.MontanaCarbonBighorn Basin: along a tributary of South Fork Bridger Creek just W of Pryor Mountain Road, ca 8 air mi SE of Bridger.-108.815545.20712621323Along stream through redbeds and adjacent wet to dry meadows dominated by Glycyrrhiza. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4029Brian Elliott1998723204U.S.A.ColoradoLas AnimasWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Exit 23 on I-25.-104.529937.28741859Prairie-grassland with Artemisia and Sarcobatus. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.72059B. E. Nelson2007618169U.S.A.KansasMortonCimarron National Grassland: along Cimarron River and Turkey Trail ca 1 air mi E of Kan Hwy 27, ca 8.5 air mi N of Elkhart.-101.88237.12331030Silty flats in open cottonwood forest. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.72085B. E. Nelson2007618169U.S.A.KansasMortonCimarron National Grassland: along Cimarron River and Turkey Trail ca 4 air mi ENE of Kan Hwy 27, ca 10.5 air mi NNE of Elkhart.-101.843737.14131024Mature open cottonwood forest with Elymus understory on sand and silt. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.72275B. E. Nelson Bernadette Kuhn2007619170U.S.A.ColoradoOteroComanche National Grassland: on a tributary of West Fork Dry Creek, ca 10 air mi W of Timpas; ca 25 air mi SW of La Junta.-103.949437.80651402Around stock pond and adjacent weedy flats. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.72366B. E. Nelson2007620171U.S.A.ColoradoBacaComanche National Grassland: Sand Canyon, ca 0.5 air mi N of Oklahoma, ca 15.5 air mi WSW of Campo.-102.830337.007912951298Mature cottonwood forest with scattered juniper on sand or sandy silt substrate. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.72579B. E. Nelson Bernadette Kuhn2007624175U.S.A.ColoradoBacaComanche National Grassland: Cave Spring and below just off Holt Canyon, just N of Oklahoma, ca 13 air mi SW of Campo.-102.774837.00051295Riparian area in canyon bottom. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1046Bernadette Kuhn2007611162U.S.A.KansasMortonCimarron National Grassland: along the Cimarron River, 7 mi N of Elkhart.-101.892137.11961033Along river in cottonwood gallery forest. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1079Bernadette Kuhn2007611162U.S.A.KansasMortonCimarron National Grassland: ca 7 mi N of Elkhart.-101.863337.12451031Near lone cottonwood, understory dominated by Elymus spp; sandy soil Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1199Bernadette Kuhn2007613164U.S.A.ColoradoBacaComanche National Grassland: Carrizo Canyon.-103.006737.14091462Lush canyon dominated by Rhus aromatica. Phenology: flowering & fruiting.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1640Bernadette Kuhn B. E. Nelson2007624175U.S.A.ColoradoBacaComanche National Grassland: Holt Canyon, 27.5 air mi SSW of Springfield.-102.784937.03241296Spring fed pond with Juncus sp., Sagittaria sp. and Salix exigua. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2182Bernadette Kuhn Joe Rankin200776187U.S.A.KansasMortonCimarron National Grassland: along the Cimarron River, ca 7.5 air mi NW of Elkhart.-101.99637.07711058Tamarix thickets along dry river bed. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2248Bernadette Kuhn Joe Rankin200776187U.S.A.KansasMortonCimarron National Grassland: Cimarron National Grassland Recreational Area: ca 10 air mi NE of Elkhart.-101.825937.13591083Around pond in recreational area dominated by Helianthus annuus, Ambrosia sp., and Populus deltoides. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2258Bernadette Kuhn Joe Rankin200777188U.S.A.KansasMortonCimarron National Grassland: Point of Rocks, ca 7 mi N of Elkhart.-101.911737.11661028At ponds, sandy banks dominated by Tamarix ramosissima, Salix exigua, and Scirpus. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2400Bernadette Kuhn200779190U.S.A.ColoradoOteroComanche National Grassland: Higbee Canyon, ca 14 air mi SSE of La Junta.-103.485237.78391314Canyon dominated by Bouteloua gracilis, Bouteloua curtipendula, and scattered Populus deltoides. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2828Bernadette Kuhn Amy Tomson200784216U.S.A.ColoradoBacaComanche National Grassland: Carrizo Canyon, ca 28.5 air mi SW of Springfield.-103.015337.14391468Lush canyon dominated by Rhus aromatica and Yucca glauca. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3418Bernadette Kuhn Joe Rankin2007812224U.S.A.ColoradoOteroComanche National Grassland: near Timpas Creek, ca 30.5 air mi SW of La Junta.-103.956537.69431458Along wet drainage ditch. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3646Bernadette Kuhn Joe Rankin2007825237U.S.A.ColoradoLas AnimasComanche National Grassland: Tobe Creek, 2.5 mi S of Tobe; ca 54.5 air mi S of La Junta.-103.611837.19911651Along creek. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.11823Brian Elliott2003920263U.S.A.ColoradoOteroComanche National Grassland: Vogel Canyon, ca 14-15 air mi S of La Junta, ca 3 air mi W of Higbee.-103.512137.76111310Riparian with tall forbs, Populus, Salix. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.85076Ronald L. Hartman Bernadette Kuhn, Laura E. Lukas2007528148U.S.A.ColoradoOteroComanche National Grassland: Vogal Canyon, from trail head to south end at fence line.-103.513137.770213071338Pinyon-juniper canyonland, sandstone; with willow and cottonwood thickets near fence. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.12062Brian Elliott2003105278U.S.A.ColoradoLas AnimasComanche National Grassland: along and adjacent to Tobe Creek, ca 1.2 mi S of Tobe and U.S. Hwy 160; ca 14 mi SE of Kim.-103.613837.2011757Shortgrass prairie and riparian. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.13197Brian Elliott2004515136U.S.A.ColoradoOteroComanche National Grassland: ca 1 mi S of Timpas, E and N of cemetary.-103.768237.80771371At a stock pond and along riparian zone. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.12037cBrian Elliott2003104277U.S.A.ColoradoBacaComanche National Grassland: at and ca 0.5 mi S of Picture Canyon Picnic Area, ca 10.5 mi SW of Campo and ca 1 mi N of Oklahoma.-102.743237.01771310Sandstone bluffs, cliffs, and riparian; sandy soil. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3893Bernadette Kuhn Darla Jackson, Lonnie Jackson2008512133U.S.A.ColoradoLas Animas[location and coordinates withheld]1557Along creek dominated by Scirpus and Eleocharis. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4000Bernadette Kuhn2008514135U.S.A.KansasMortonCimarron National Grassland: at picnic grounds on east side of Kans Hwy 27, ca 7.5 air mi N of Elkhart.-101.894637.11961057Cottonwood gallery forest. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4007Bernadette Kuhn2008514135U.S.A.KansasMortonCimarron National Grassland: along the Cimarron River, 0.5 mi E of picnic area, ca 7.5 air mi N of Elkhart.-101.890437.11981032Mature cottonwood gallery forest with sandsage prairie on upland portions. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4062Bernadette Kuhn2008521142U.S.A.KansasMortonCimarron National Grassland: Point of Rocks ponds, ca 7 air mi N of Elkhart.-101.913237.11621042Sand dunes dominated by large stands of Artemisia flanking small beaver ponds; edge of ponds dominated by Scirpus, Cyperus, and Typha. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4088Bernadette Kuhn2008522143U.S.A.KansasMortonCimarron National Grassland: at fishing ponds E of campground, ca 9.5 air mi NNE of Elkhart.-101.820837.13581082Edge of ponds dominated by Eleocharis, Scirpus, and Typha; uplands with Stipa, Erigeron, and stands of Populus. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4147Bernadette Kuhn2008522143U.S.A.KansasMortonCimarron National Grassland: underneath Kans Hwy 27 bridge at small ponds, ca 7.5 air mi N of Elkhart.-101.897237.1211063Ponds surrounded by dying stands of Populus and burned Tamarix. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4357Bernadette Kuhn Joe Rankin2008525146U.S.A.ColoradoOteroComanche National Grassland: Vogel Canyon, ca 15.5 air mi S of La Junta.-103.513237.76171314Dakota sandstone canyon walls dominated by Bouteloua spp. and Rhus aromatica with springs and pools below. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4624Bernadette Kuhn200864156U.S.A.ColoradoOteroComanche National Grassland and Vicinity: on Colo Hwy 167, ca 2 air mi N of Radio Tower, ca 10.5 air mi S of Fowler.-104.041437.97991367Roadside. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4932Bernadette Kuhn Catherine Kuhn, Mike Mason200868160U.S.A.ColoradoBacaComanche National Grassland: Carrizo Creek, along trail from Carrizo Picnic Area, ca 29 air mi SW of Springfield.-103.0155137.136271463Rocky uplands dominated by Machaeranthera, Melampodium, and Opuntia; lush creek bed dominated by Saponaria, Vitis, and Parthenocissus. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5259Bernadette Kuhn2008619171U.S.A.ColoradoOteroComanche National Grassland: Timpas Creek, just N of U.S. Hwy 350 and Bloom, ca 13 air mi SW of Timpas.-103.957337.69421451Scattered Populus and Juniperus monosperma; creek with Juncus sp. and Eleocharis sp. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5291Bernadette Kuhn2008620172U.S.A.ColoradoLas Animas[location and coordinates withheld]1357Salix dominated riparian area. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5300Bernadette Kuhn2008620172U.S.A.ColoradoLas Animas[location and coordinates withheld]1374Red sandstone cliffs with scattered Juniperus monosperma. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5325Bernadette Kuhn2008620172U.S.A.ColoradoLas Animas[location and coordinates withheld]1365Salix thickets along creek bank with scattered Sambucus, sandy soil. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5540Bernadette Kuhn Cali Hemenway2008623175U.S.A.ColoradoOteroComanche National Grassland: Picketwire (Purgatoire) Canyon at the dinosaur tracks, ca 26 air mi S of La Junta.-103.597437.6181337Salix-lined river banks with Eleochoris and Juncus. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5613Bernadette Kuhn Cali Hemenway2008624176U.S.A.ColoradoLas Animas[location and coordinates withheld]1667At grove of Eleagnus and Ulmus with overflowing well. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5714Bernadette Kuhn Cali Hemenway2008624176U.S.A.ColoradoLas Animas[location and coordinates withheld]1799Along creek with Salix trees and Populus; Symphoricarpos thickets along bank. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5768Bernadette Kuhn Cali Hemenway2008625177U.S.A.ColoradoBacaComanche National Grassland: Picture Canyon, ca 28.5 air mi SSW of Springfield.-102.746537.00841297Along creek and sandstone canyon walls. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6180Bernadette Kuhn200878190U.S.A.ColoradoOtero[location and coordinates withheld]1291Rock outcrops dominated by Stipa and Aristida. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6233Bernadette Kuhn200878190U.S.A.ColoradoOteroComanche National Grassland: along two track leading to water tank, ca 28 air mi SW of La Junta.-103.92337.72061462Rocky prairie dominated by Cylindropuntia imbricata and Yucca glauca. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6989Bernadette Kuhn Darla Jackson, Lonnie Jackson2008718200U.S.A.ColoradoLas Animas[location and coordinates withheld]1560At spring. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7023Bernadette Kuhn2008718200U.S.A.ColoradoLas Animas[location and coordinates withheld]1518At creek crossing, large stand of soapberry trees. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7221Bernadette Kuhn Everett Jackson2008724206U.S.A.ColoradoLas Animas[location and coordinates withheld]1484Lush creek banks dominated by Rhus aromatica, Populus, and Tamarix. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7593Bernadette Kuhn Joe Rankin2008728210U.S.A.ColoradoLas Animas[location and coordinates withheld]1389Lush creek banks dominated by Typha and Scirpus. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7657Bernadette Kuhn Joe Rankin2008729211U.S.A.ColoradoBacaComanche National Grassland: 0.5 mi N of County Road C, along two track, ca 11 air mi SE of Campo.-102.411937.02221234Dominated by Yucca, Artemisia filifolia, and Sporobolus. Phenology: vegetative only.RMRM905918 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4506Ben Legler2007617168U.S.A.New MexicoColfaxVermejo Park Ranch: along Dillon Canyon Road just downstream (E of) mouth of Gardiner Canyon on south side of golf course on SW side of Raton.-104.471388936.886416672014Open valley bottom with scattered Populus angustifolia and P. deltoidea along dry streambed; surrounded by grassy fields. Several large trees on stream bank. Photographed. Phenology: fruiting.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.534Brian Elliott1998527147U.S.A.ColoradoFremontWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: ca 2.6 mi on County Road 15, S of Florence.-105.151138.29661829By creek on roadside; prairie-pinyon-juniper transition; riparian. Phenology: vegetative only.RMRM939381 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.811Emily Elliott Brian Elliott200764155U.S.A.MontanaCarbonCooney Reservoir along Red Lodge Creeek Road, on south side of reservoir W of dam, ca 18 air mi N of Red Lodge.-109.203745.44441295Slopes around reservoir with sandy soils in mixed Artemisia cana and annual weedy forbs/grasses. Phenology: fruiting.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.775Brian Elliott Kenneth Elliott199863154U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Rock Creek Hill, on Colo Hwy 78, SW of Pueblo.-104.816138.13721676Pinyon-juniper; prairie. Phenology: vegetative only.RMRM939382 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.85784Ronald L. Hartman2007617168U.S.A.MontanaCarbon0.5 air mi S of Columbus on Mont Hwy 78 at Itch-kep-pe Park along the Yellowstone River.-109.252145.62841088Along river and throughout park. Phenology: vegetative only.RMRM939383 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.85861Ronald L. Hartman2007617168U.S.A.MontanaCarbonMont Hwy 421, ca 1 air mi W of U.S. Hwy 212, near Joliet.-109.010945.48081162Very weedy rolliing grassland. Phenology: fruiting.RMRM823777 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3253Michael Schiebout2005511131U.S.A.New MexicoUnionClayton State Park: north end of park.-103.3136.5794441570Along and around trail, flood plain and up the cliff walls. Phenology: fruiting.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.60068Ronald L. Hartman Brian Elliott1998519139U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Three R Road (County Road 230) at Spring Branch Creek.-104.889338.03511783Roadside. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.60099Ronald L. Hartman Brian Elliott1998519139U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Red Creek Springs Road West, ca 11 air mi SW of Pueblo (city center).-104.779538.210214631524Grasslands with juniper. Phenology: fruiting.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.60471Ronald L. Hartman Brian Elliott1998523143U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: I-25 just N of Scroggs Arroyo.-104.765337.65311661Grassland and pinyon-juniper. Phenology: vegetative only.RMRM939384 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4707Emily Elliott2008617169U.S.A.MontanaStillwaterAlong Frontage Road from I-90 exit 400 (Springtime), ca 8 air mi NW of Columbas.-109.390345.69981097Disturbed area along road and irrigation canal dominated by invasive grasses and forbs. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.60609Ronald L. Hartman Brian Elliott1998523143U.S.A.ColoradoFremontWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Colo Hwy 115, ca 2 air mi WNW of Florence (city center).-105.151138.412115851615Sandstone cliffs and rocky-sandy slopes with wooded areas around streams. Phenology: fruiting.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.60860Ronald L. Hartman Melanie Arnett, Charity Hall, Brian Jacobs, and Alex Morgan199862153U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountains: west side of Rye.-104.944237.903822432250Gravel pit and adjacent forest; dominants include oak, ponderosa pine, chokecherry, and pinyon pine. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.61524Ronald L. Hartman1998617168U.S.A.ColoradoLas AnimasWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: north end of Trinidad along I-25.-104.493637.218291844Grassland with scattered thickets of pinyon-juniper. Phenology: vegetative only.RMUSFS891199 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.78239B. E. Nelson2009726207U.S.A.MontanaPowder RiverCuster National Forest: Ashland District: Cow Creek Reservoir ca 6 air mi W of Fort Howes Work Center, ca 25 ai mi S of Ashland.-106.246945.31051176Banks of reservoir, adjacent slopes, and dam. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.78378B. E. Nelson2009728209U.S.A.MontanaCarterAlong North Butte Creek between Hamilton Creek and Little Missouri River on the south side of Mont Hwy 323, ca 2 air mi NW of Albion; ca 13.5 air mi N of Alzada.-104.309645.20510091012Dry stream bed and adjacent steep banks and bench with green ash and occasional boxelder and snowberry thickets. Phenology: vegetative only.RMUSFS885799 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.78534B. E. Nelson2009730211U.S.A.South DakotaHardingCuster National Forest: North Cave Hills: ca 0.5 air mi SE of Riley Pass, ca 18 air mi N of Buffalo.-103.47145.83610031012Flats with Uranium mine spoil piles and area of ponderosa pine forest. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.711Hans Hallman2009619170U.S.A.South DakotaHardingCa 2.5 air mi N of SD Hwy 20, ca 4.5 air mi NE of Camp Crook near Johnson Butte.-103.912345.5943954981Hardwood draw dominated by green ash, boxelder, and chokecherry. Phenology: vegetative only.RMUSFS891204 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2899Hans Hallman2009725206U.S.A.South DakotaHardingCuster National Forest: Slim Buttes: in the vicinity of Rimrock Spring, ca 1 air mi S of Forest Road 3151, ca 7.5 air mi SE of Summit Pass on SD Hwy 79 and ca 31 air mi SE of Buffalo.-103.036245.3093920960Mixed grass and badlands. Phenology: fruiting.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3263Hans Hallman2009728209U.S.A.MontanaCarterJust off of Mont Hwy 323 at Skull Creek, ca 3 road mi S of junction with Tie Creek Road, ca 23.5 air mi SSE of Ekalaka.-104.38145.5679931003Moist drainage. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.63158Ronald L. Hartman Craig Freeman1998813225U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: ca 1.5 road mi E of Rye.-104.907637.91841951Roadside and road cut. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5171Hans Hallman2010622173U.S.A.MontanaPowder RiverE of Moorehead Road along the Powder River, ca 9 air mi SW of Broadus.-105.528345.3485914926Along bank and on floodplain of the river, dominated by Euphorbia, Elaeagnus, Tamarix, and Populus. Phenology: vegetative only.RMUSFS885800 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5757Hans Hallman201074185U.S.A.MontanaPowder RiverCuster National Forest: Ashland Ranger District: just N of Forest Road 4410, ca 2 air mi E of Yager Butte, ca 17 air mi ESE of Ashland.-105.984345.458611151158In and around flowing-water hardwood draw with green ash, boxelder, chokecherry, snowberry, and Monarda. Phenology: vegetative only.RMUSFS891203 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6687Hans Hallman2010724205U.S.A.MontanaCarterCuster National Forest: Long Pines: ca 0.5 air mi S of the junction of Forest roads 3818 and 3036, ca 3.5 air mi WNW of Lantis Spring and ca 22 air mi SE of Ekalaka.-104.246145.647310361039Flowing-water draw with juniper, cottonwood, and green ash. Phenology: vegetative only.RMUSFS891202 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6801Hans Hallman2010727208U.S.A.MontanaPowder RiverCuster National Forest: Ashland Ranger District: in the vicinity of Cow Creek, just S of Forest Road 4095, ca 1.5 air mi W of Otter Creek Road or Mont Hwy 484, ca 2 air mi WSW of Fort Howes.-106.184845.294310361060Flowing water draw with cottonwood, green ash, Juncus, and Salix. Phenology: vegetative only.RMUSFS891201 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7027Hans Hallman2010730211U.S.A.MontanaPowder RiverCuster National Forest: Ashland Ranger District: in Bridge Canyon, ca 1 air mi E of Taylor Butte, ca 2 air mi ESE of Fort Howes.-106.117945.2869East-facing slope in hardwood draw with Prunus and grass-dominated understory. Phenology: vegetative only.RMUSFS891200 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7132Hans Hallman2010731212U.S.A.MontanaPowder RiverCuster National Forest: Ashland Ranger District: in the vicinity of South Fork Bloom Creek, just N of Bloom Creek Road, ca 3 air mi ESE of Diamond Butte, ca 14.5 air mi ESE of Fort Howes.-105.875945.235911031121Lowland dominated by cottonwood, green ash, Rosa, Ribes, and Symphoricarpos. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.79665B. E. Nelson Joseph L. M. Charboneau201068159U.S.A.MontanaValleyBLM Recreation Area between Bentonite Road and Brazil Creek, ca 11 air mi WSW of Glasgow.-106.871648.1718678Meadow around reservoir. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.80386B. E. Nelson2010724205U.S.A.MontanaPhillipsLittle Rocky Mountains: along Pony Gulch, a tributary of Alder Gulch, ca 1 air mi WSW of Zortman; ca 45 air mi SW of Malta.-108.544747.911913351371Roadside and roadcut in canyon bottom. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.80644B. E. Nelson2010729210U.S.A.MontanaPhillipsLarb Hills (South): at the head of Telegraph Creek, ca 47 air mi S of Saco; ca 44 air mi SSE of Malta.-107.492847.7983884945Boxelder-chokecherry-buffaloberry-Rocky Mountain juniper-cottonwood thickets in the valley bottom and ravenes. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.80706B. E. Nelson2010729210U.S.A.MontanaPhillipsLarb Hills (South): near the head of South Fork Shotgun Coulee ca 1 air mi N of Coal Mine Hill, ca 44-45 air mi S of Saco; ca 40 air mi SSE of Malta.-107.532747.8508914969Bottom of the draw. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.80815B. E. Nelson2010731212U.S.A.MontanaPhillipsUpper end of Peck Coulee ca 4 air mi S of Saskatchewan and ca 3 air mi E of Frenchman Creek, ca 51 air mi NNE of Malta.-107.259848.954884902Aspen grove in the bottom. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.81114B. E. Nelson2010912255U.S.A.MontanaPhillipsCharles M. Russell National Wildlife Refuge: along the Missouri River at Jones Island just below Bell Bottoms, ca 12 air mi S of DY Junction, ca 63 air mi SW of Malta.-108.605647.6252692River bottom with cottonwoods to 4' dbh and with willow thickets. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.81158B. E. Nelson2010914257U.S.A.MontanaValleyHinsdale Wildlife Management Area: along the Milk River above and below the Bear Creek confluence, ca 1.5-2 air mi N of Hinsdale.-107.083948.4178652Green ash forest on the flats above the river. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.81182B. E. Nelson2010914257U.S.A.MontanaPhillipsBjornberg Bridge Fishing Access Site: along the Milk River, ca 7 air mi ENE of Saco.-107.216548.5082658Flats above the river with cottonwood trees and an occasional green ash and Russian olive. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.81219B. E. Nelson2010914257U.S.A.MontanaPhillipsMcChesney Reservoir on the east side of Frenchman Creek and on the north side of Milk River Road, ca 7 air mi NE of Saco.-107.242548.5406667Flats at the edge of the reservoir adjacent to willow thickets. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.81257B. E. Nelson2010914257U.S.A.MontanaPhillipsCole Ponds State Fishing Area: between the Milk River and Whitewater River, ca 18 air mi NNW of Saco.-107.4748.5409658670Around the edge of ponds in an old gravel pit. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.81278B. E. Nelson2010916259U.S.A.MontanaValleyAlong Porcupine Creek at Roosevelt Trail and Fort Peck Indian Reservation, ca 5 air mi N of Nashua.-106.383748.2061649Scattered patches of woodland in the valley bottom. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.81416B. E. Nelson2010919262U.S.A.MontanaValleyCharles M. Russell National Wildlife Refuge: at Bonetrail Boat Ramp on Fort Peck Lake, ca 47 air mi SW of Glasgow.-107.248647.6753685731Flats and low slopes along the reservoir. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.274Joseph L. M. Charboneau2010621172U.S.A.MontanaValleyJust off Larb Creek Road along Harb Road in Hadly Coulee, ca 3 air mi NNW of Spencer Point, ca 12 air mi SW of Hinsdale.-107.294848.3006698725Moist reservoir edge. Phenology: fruiting.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5851Brian Elliott1999521141U.S.A.ColoradoPueblo[location and coordinates withheld]1615Phenology: flowering & fruiting.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.464Joseph L. M. Charboneau2010624175U.S.A.MontanaValleyOn Ridge Road, on ridge above Tony Coulee, ca 2.5 air mi SW of Finn Reservoir, ca 36 air mi SW of Glasgow.-107.25947.91868954Swale running into gully. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1214Joseph L. M. Charboneau201077188U.S.A.MontanaValleyRock Creek Canyon, ca 5.5 air mi NW of Abey Reservoir, ca 14 air mi NNE of Hinsdale; ca 32 air mi NW of Glasgow.-106.990448.5968679750Creekside. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1323Joseph L. M. Charboneau201078189U.S.A.MontanaPhillipsN of Montana Youth Ranch Road, in Clark Coulee, ca 2 air mi SSW of Hanson Reservoir, ca 18 air mi NNW of Saco; ca 27 air mi NNE of Malta.-107.53548.68765777Drainage bottoms and dry creekside. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1662Joseph L. M. Charboneau2010714195U.S.A.MontanaValleyFaraasen Park, adjacent to the Milk River and in Chapman Coulee, ca 4.5 air mi SE of Tampico; ca 7 air mi NW of Glasgow.-106.746648.2673634655Cottonwood woods. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1683Joseph L. M. Charboneau2010715196U.S.A.MontanaPhillipsE of North Dodson Road, ca 11 air mi SW of Hubert Hill, ca 23.5 air mi NW of Malta.-108.253448.5766862868Wetlands around reservoir on clay soil. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1757Joseph L. M. Charboneau2010715196U.S.A.MontanaPhillipsAssiniboine Creek, W of Assiniboine Road, ca 8 air mi WNW of the confluence of Assiniboine Creek with the Milk River, ca 10 air mi NNW of Malta.-107.976148.4826762792Steep slope underneath cottonwoods. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1796Joseph L. M. Charboneau2010717198U.S.A.MontanaPhillipsTaint Reservoir, S of BLM Road 1125, ca 1 air mi E of Sagebrush Reservoir, ca 15.5 air mi SSE of Zortman; ca 51.5 air mi SSW of Malta.-108.396147.7061878887Reservoir edge. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1973Joseph L. M. Charboneau2010718199U.S.A.MontanaPhillipsW of the northern terminus of Regina Road, ca 4.5 air mi W of Drabbels Reservoir, ca 5 air mi S of Malta.-107.869248.2896792804Roadside ditch. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6037Brian Elliott1999525145U.S.A.ColoradoHuerfano[location and coordinates withheld]2134Pinyon-juniper forest. Phenology: flowering & fruiting.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2524Joseph L. M. Charboneau2010729210U.S.A.MontanaValleyCanyon Creek, ca 3 air mi SW of Forsman Reservoir, ca 26.5 air mi NNW of Glasgow.-106.763448.5595823856Stony creek bottom. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2963Joseph L. M. Charboneau201085217U.S.A.MontanaPhillipsS of the Milk River, E of Big McNeil Slough, and N of Nelson Reservoir, ca 3.5 air mi SW of Glascock Spring, ca 21 air mi NE of Malta.-107.525648.5366667707Silty floodplain with cottonwoods and ash. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3418Joseph L. M. Charboneau2010819231U.S.A.MontanaPhillipsW of Frenchman Road, ca 3/4 air mi SW of Frenchman Reservoir, ca 22 air mi NNW of Hinsdale; ca 45.5 air mi NW of Glasgow.-107.246548.6846701707Moist coulee bottom. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.3698Joseph L. M. Charboneau2010822234U.S.A.MontanaPhillipsReservoir No. 161, S of U.S. Hwy 191 and W of Rudolph Valley Road, ca 2.5 air mi W of Partnership Reservoir, ca 17 air mi SW of Malta.-108.084548.1641777780Moist grasslands below dam. Phenology: vegetative only.RMRM89744 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.747J. W. Blankinship1906723204U.S.A.MontanaThree Forks.1280Along streams. Phenology: vegetative only.RMUSFS444497 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.575Wilfred W. White194784216U.S.A.MontanaSweet GrassGallatin National Forest: Hwy 19 at the north side of the Yellowstone River near Big Timber.Flat ground; deep sandyloam soil; river bottom woodland. Rare here. Phenology: flowering.RMUSFS444498 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.553Wilfred W. White1947619170U.S.A.MontanaTetonLewis and Clark National Forest: Hwy 91 at Marias River.Flat ground; deep gravelly loam soil; stream woodland open; valley near water. Occasional here. Phenology: vegetative only.RMUSFS444499 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.581Wilfred W. White194785217U.S.A.MontanaRosebudCuster National Forest: at a little N.P. station called Myers, 1/2 to 1 mi N of Hwy 10.Flat ground; deep sand, gravel, silt; along stream; woodland in open grassland. Abundant. Specimen consists only of a packet containing fruit. Phenology: fruiting.RMUSFS444500 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.579Wilfred W. White194785217U.S.A.MontanaStillwaterCuster National Forest: Yellowstone River, ca 1/2 NW of Reedpoint.Flat ground; deep river bottom silt soil; stream woodland in grass country. Phenology: vegetative only.RMUSFS444501 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.555Wilfred W. White1947622173U.S.A.MontanaSheridanHwy 16, 1 mi SE of Plentywood.Gentle slope; deep black loam; open grassland with tree now and then; swales. Scarce. Phenology: vegetative only.RMRM210471 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2734W. E. Booth1948620172U.S.A.MontanaPowder River20 mi NW of Broadus.Along streams. Common. Phenology: vegetative only.RMRM165969 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7695L. R. M.1916U.S.A.North DakotaLittle Missouri River at Marmarth.River bottom. Phenology: fruiting.RMRM283252 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.10366C. L. Porter Marjorie W. Porter196767158U.S.A.North DakotaBillingsNear Medora and Theodore Roosevelt National Memorial Park, Little Missouri River.762In the badlands; wooded bottomland. Phenology: flowering.RMUSFS444496 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1822J. M. Aikman1935612163U.S.A.South DakotaYanktonJames River, 6 mi SW of Midway.Flat ground; rich loam soil; cottonwood, willow; lower floodplain. Medium abundance. Phenology: flowering & fruiting.RMRM394255 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9006Gary E. Larson1983630181U.S.A.South DakotaHamlinLake Norden.Sparsely wooded bank along lake shore. Common. Phenology: flowering.RMRM394395 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9799Gary E. Larson1983817229U.S.A.North DakotaMcLeanSmall marsh with dugout stockpond, dominated by Polygonum coccineum, Scirpus fluviatilis, Carex atherodes and Typha X glauca. Common. Phenology: vegetative only.RMRM394356 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9080Gary E. Larson198377188U.S.A.South DakotaClarkWillow Lake.Low bank at edge of lake. Common. Phenology: fruiting.RMRM394260 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9000Gary E. Larson1983630181U.S.A.South DakotaHamlinLake Poinsett, public access area.On bank bordering sandy lake shore. Phenology: fruiting.RMRM394289 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9233Gary E. Larson1983715196U.S.A.South DakotaMarshallBuffalo Lake: Public Access Area on west side of lake.Sandy gravelly lake shore. Common. Phenology: fruiting.RMRM394446 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8656Gary E. Larson1983518138U.S.A.South DakotaDeuelLake Cochrane.Along old shoreline among large boulders; west side of lake. Phenology: flowering.RMRM110681 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.676Herman E. Hayward192768159U.S.A.South DakotaCedar Canyon, along Great Wall, near Interior.Badlands, south facing cliffs. Phenology: vegetative only.RMRM87663 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.s.n.Frank E. Hepner5122U.S.A.South DakotaBrookingsBrookings.In cultivation. Phenology: flowering.RMRM876 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.s.n.W. C. Knight1882U.S.A.NebraskaLancaster.Phenology: flowering.RMRM165968 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.s.n.Harry Hapeman1930516136U.S.A.NebraskaKearneyMinden.Phenology: fruiting.RMRM576203 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2672Joyce Phillips Hardy Gretchen Lees1991529149U.S.A.NebraskaSiouxGilbert-Baker picnic grounds: 7.1 mi N of Harrison on county road.Lower floodplain in picnice area; sandy loam soil. Common. Phenology: vegetative only.RMUSFS444504 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1768J. M. Aikman1935610161U.S.A.NebraskaAntelopePrairie States Forestry Project: Elkhorn River at Neligh.Flat ground; sandy soil; lower floodplain; with cottonwood and willow. Abundant; dense, thicket-like. Phenology: vegetative only.RMRM237734 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.883Fred Eastman1915512132U.S.A.NebraskaOmaha.Phenology: fruiting.RMRM275547 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.100Elray S. Nixon1964619171U.S.A.NebraskaSheridanMetcalf Public Hunting Grounds, 13 mi N of Hay Springs.-102.6756642.847721006Open ridges and Pinus ponderosa forest; bottoms. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.82046B. E. Nelson2011622173U.S.A.MontanaValleyAlong Harper Ridge Road above and N of Carpenter Creek at the north boundary of Charles M. Russell National Wildlife Refuge, ca 40 air mi SW of Glasgow.-107.137947.7482801847Clay or sandy clay slopes in rough breaks capped with sandstone. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.82255B. E. Nelson2011626177U.S.A.MontanaValleyAlong Burnett Creek E of Rock Creek Road, ca 19 air mi NNE of Hinsdale.-106.956748.6475728Along the stream. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.82450B. E. Nelson2011628179U.S.A.MontanaPhillipsAt the intersection of U.S. Hwy 191 and Sunnyslope Road, ca 2 air mi N of Loring; ca 32 air mi N of Malta.-107.859348.8201853859Roadside and barrow pit. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4414Joseph L. M. Charboneau201164155U.S.A.MontanaPhillipsAssiniboine Creek and ridge to the NE, ca 2.5 air mi W of the Milk River, ca 8 air mi NNE of Malta.-107.848848.4619710774Streamside. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4457Joseph L. M. Charboneau201164155U.S.A.MontanaPhillipsN of Assiniboine Road, ca 9.5 air mi WSW of Fanny Hill, ca 27 air mi SSW of Loring; ca 13 air mi NNW of Malta.-107.974148.5301835850Roadside ditch. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4987Joseph L. M. Charboneau2011612163U.S.A.MontanaPhillipsE of Mont Hwy 208, ca 0.5 air mi N of Austin Lake, ca 2.5 air mi SSW of Whitewater; ca 28 air mi NNE of Malta.-107.652548.7303743746Roadside ditch. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5215Joseph L. M. Charboneau2011615166U.S.A.MontanaPhillipsW of Midale Road, ca 4.5 air mi NNE of Veseth Reservoir, ca 28.5 air mi ENE of Zortman; ca 28 air mi SSW of Malta.-108.121847.9905829832Roadside ditch. Phenology: fruiting.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5368Joseph L. M. Charboneau2011619170U.S.A.MontanaValleyWindy Ridge and Papoose Creek, ca 1 air mi SSW of Erie Reservoir, ca 15 air mi N of Hinsdale; ca 36 air mi NW of Glasgow.-107.08548.6081780826Roadside ditch. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5745Joseph L. M. Charboneau Mark Majerus, Michael Dolan, Noorjahan Parwana, Katie Butts, and Mary Frieze2011624175U.S.A.MontanaPhillipsAmerican Prairie Reserve: Box Elder Creek and hills above, ca 4 air mi E of Indian Lake, ca 38.5 air mi ESE of Zortman; ca 44 air mi SSE of Malta.-107.767447.735704728Floodplain bottoms with greasewood on clay soil and riparian areas. Phenology: fruiting.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.6877Joseph L. M. Charboneau201175186U.S.A.MontanaPhillipsCottonwood Creek at confluence with Black Coulee, ca 9.5 air mi SW of Horseshoe Lake, ca 15 air mi WSW of Loring; ca 30.5 air mi NNW of Malta.-108.190348.7393801823Streambanks on clay soil. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7224Joseph L. M. Charboneau201179190U.S.A.MontanaValleyTomato Can Creek, along Fossum Road, ca 4 air mi S of Saskatchewan, ca 19 air mi WNW of Opheim; ca 53 air mi NNW of Glasgow.-106.801748.936777783Moist ditches and streambanks. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7354Joseph L. M. Charboneau2011711192U.S.A.MontanaPhillipsKorsbeck Waterfowl Production Area: W of Stage Road, ca 8 air mi N of Ester Lake, ca 24 air mi NNE of Zortman; ca 21.5 air mi SW of Malta.-108.270648.2154789792Roadside ditch. Phenology: fruiting.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8430Joseph L. M. Charboneau2011731212U.S.A.MontanaPhillipsBowdoin National Wildlife Refuge: along Refuge Tour Road, near Black Coulee Pond, ca 6 air mi NW of Le Noir Reservoir, ca 3.5 air mi E of the Milk River, ca 7 air mi ENE of Malta.-107.735248.3844682689Wetlands interspersed with groves of cottonwood and Russian olive and chokecherry-willow thickets. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8727Joseph L. M. Charboneau201184216U.S.A.MontanaValleyGlasgow Base Ponds, W of Mont Hwy 24, ca 4.5 air mi W of Porcupine Creek, ca 3.5 air mi NW of St. Marie; ca 18 air mi N of Glasgow.-106.579148.4481829835Moist grasslands surrounding pond with willows, Russian olive, and snowberry thickets. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8951Joseph L. M. Charboneau201184216U.S.A.MontanaValleyWillow Creek near its confluence with Eagles Nest Coulee and ridge to the W, ca 7.5 air mi WNW of Newberry Flat Reservoir, ca 15 air mi NNE of Hinsdale; ca 32 air mi NW of Glasgow.-106.970248.5868682701Sandy creek bottoms and riparian groves of cottonwood and willow. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9220Joseph L. M. Charboneau201189221U.S.A.MontanaPhillipsMilk River Dodson Dam Unit Wildlife Management Area: ca 3.5 air mi NW of Dodson; ca 21 air mi WNW of Malta.-108.308648.4152701707Grasslands with silver sagebrush on sandy soil with small stands of Russian olive, buffaloberry, and cottonwood. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9351Joseph L. M. Charboneau2011811223U.S.A.MontanaPhillipsMcNeil Slough Waterfowl Production Area: Milk River, ca 1 air mi N of Hewitt Lake, ca 13.5 air mi NW of Saco; ca 20 air mi NE of Malta.-107.588948.5557673682Riparian bottoms with closed canopy cottonwood groves to scattered chokecherry, green ash, and boxelder with silver sagebrush. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9487Joseph L. M. Charboneau2011813225U.S.A.MontanaPhillipsCharles M. Russell National Wildlife Refuge: Manning Bottoms along Rock Creek, ca 10 air mi E of Fred Robinson Bridge, ca 21.5 air mi S of Zortman; ca 60 air mi SW of Malta.-108.473247.6128695701Floodplain with some groves of willows and cottonwoods on silty soil. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9584Joseph L. M. Charboneau2011813225U.S.A.MontanaPhillipsAmerican Prairie Reserve: Telegraph Creek, ca 4.5 air mi NE of Indian Lake, ca 38 air mi ESE of Zortman; ca 41.5 air mi S of Malta.-107.769447.7749716719Riparian cottonwood grove with snowberry understory. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.9664Joseph L. M. Charboneau2011815227U.S.A.MontanaValleyBrazil Creek, S of Bentonite Road, ca 2.5 air mi WSW of Mahan and Hoyt Reservoir, ca 9 air mi S of Tampico; ca 8 air mi W of Glasgow.-106.811148.1789652658Creekside riparian areas on clay soil with green ash groves. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.64071Ronald L. Hartman1999511131U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: on Colo Hwy 96, 1-1.5 air mi SE of Pueblo Reservoir dam.-104.706338.25414631585Calcareous slopes with scattered juniper. Phenology: vegetative only.RM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.5757Hans Hallman201074185U.S.A.MontanaPowder RiverCuster National Forest: Ashland Ranger District: just N of Forest Road 4410, ca 2 air mi E of Yager Butte, ca 17 air mi ESE of Ashland.-105.984345.458611151158In and around flowing-water hardwood draw with green ash, boxelder, chokecherry, snowberry, and Monarda. Phenology: vegetative only.RMRM914610 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.10773Robert D. Dorn2013729210U.S.A.WyomingGoshenCa 3 mi SW of town of Fort Laramie, along the Laramie River.-104.56666742.21310Roadside ditch along the river, with Populus Ă—acuminata and Bromus. Tree 6 inches DBH. Phenology: vegetative only.RMRM921449 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.11080Robert D. Dorn201469160U.S.A.WyomingPlatteCa 5 mi NW of Wheatland.-105.09166742.1033331402Wet meadow, with Salix exigua and S. amygdaloides. Tree 12 in DBH. Phenology: vegetative only.RMRM921249 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.11276Robert D. Dorn2014630181U.S.A.WyomingNiobraraCa 4 mi NNE of Mule Creek Junction.-104.17333343.4516671128Depression in prairie, with Fraxinus and Melilotus. Tree 24 in DBH. Phenology: vegetative only.RMRM921634 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.11540Robert D. Dorn2014811223U.S.A.WyomingPlatteWheatland Reservoir No 1, southeast side, ca 5 mi SW of Wheatland.-105.03166741.9951524Shore of reservoir, with Elaeagnus and Helianthus. Tree 12 in DBH. Phenology: vegetative only.RMRM921718 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.11639Robert D. Dorn2014925268U.S.A.WyomingCrookCa 4 mi SW of Hulett.-104.65666744.631189Moist meadow, with Prunus and Elymus. Tree 3 ft DBH. Phenology: fruiting.RMRM799753 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.19472Walter Fertig200161152U.S.A.WyomingFremontWind River Basin: east shore of Boysen Reservoir just N of U.S. Hwy 26 causeway, ca 3.5 mi SSW of Shoshoni.-108.172743.22191448Sandy beach at base of sandy bluff above normal reservoir level. Scattered Populus deltoides.RMRM932476 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8430B. E. Nelson1981721202U.S.A.WyomingBig HornBighorn Basin: Owl Charco Reservoir, ca 18 air mi SW of Basin on Fifteenmile Creek Road.-108.2602844.17471371In the reservoir area. Phenology: flowering & fruiting.RMRM937720 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.11705Robert D. Dorn2016511132U.S.A.WyomingPlatteCottonwood Draw Wildlife Habitat Management Area: ca 12 mi NE of Wheatland.-104.73666742.131371Dry wash, with Juniperus, Populus acuminata. Tree 4' DBH. Phenology: flowering & fruiting.RMRM937721 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.11706Robert D. Dorn2016511132U.S.A.WyomingGoshenRawhide Wildlife Habitat Mangement Area: ca 2 mi S of Lingle.-104.3542.1066671280Edge of marsh, with Elaeagnus, Symphoricarpos. Tree 18" DBH. Phenology: flowering.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.7935Amy J. Roderick199888220U.S.A.WyomingNatronaUpper North Platte and Laramie River Drainages: Pathfinder Reservoir and Mountain: Bishop Point Recreation Area, ca 3.4 air mi W of County Road 409; ca 10.5 air mi SW of Alcova townsite.-106.904742.49661792Along creek; graminoids dominant; Ribes and big sage common. Phenology: vegetative only.RMRM981600 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4721Bonnie Heidel201877188U.S.A.WyomingAlbanyWest slope Laramie Range: ca 0.9 mi NE of U.S. Hwy 30, ca 3.5 air mi E of downtown Laramie.-105.528341.30932292Old quarry, base of sideslope; shallow, fractured limestone bedrock, gravelly soil; with Heterotheca villosa, Koeleria macrantha, Populus angustifolia. Phenology: vegetative only.RMRM607139 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.38759Ronald L. Hartman1993627178U.S.A.WyomingConverseSouthern Powder River Basin/Southeastern Plains: Southern Powder River Basin: Wyoming Game and Fish Access on North Platte River, ca 6.5 air mi E of Glenrock.-105.738642.84531500Riverside and sandy parking lot and flats slightly uphill. Phenology: flowering & fruiting.RMRM607138 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.38496Ronald L. Hartman1993626177U.S.A.WyomingNatronaSouthern Powder River Basin/Southeastern Plains: Southern Powder River Basin: Wyo Hwy 253, ca 9 air mi SE of Casper.-106.14342.76121652Wide right-of-way with road cut and relatively undisturbed grasslands along fence and drainage with cottonwood and willow. Phenology: vegetative only.RMRM607140 Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.38800Ronald L. Hartman1993627178U.S.A.WyomingConverseSouthern Powder River Basin/Southeast Plains: Southern Powder River Basin: Wyoming Game and Fish Access area along the North Platte River in vicinity of Carey; ca 10 air mi E of Glenrock.-105.663842.85841518River margin and sandy flats and slopes. Phenology: flowering & fruiting.RM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.50323Ronald L. Hartman Timothy W. Chumley1995521141U.S.A.ColoradoPuebloEast-central Colorado: Mosquito Range to Plains: ca 12 air mi NW of center of Pueblo at Turkey Creek on U.S. Hwy 50.-104.929838.35431585Shale rimrock with pinyon-juniper, stream bottom, and grasslands. Phenology: vegetative only.RM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.50358Ronald L. Hartman Timothy W. Chumley1995521141U.S.A.ColoradoPueblo[location and coordinates withheld]1585Limy area with caprock; pinyon-juniper. Phenology: vegetative only.RM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.50401Ronald L. Hartman Timothy W. Chumley1995521141U.S.A.ColoradoPuebloEast-central Colorado: Mosquito Range to Plains: ca 13 air mi WNW of center of Pueblo at Swallows along the Arkansas River.-104.85638.3111570Breaks along river. Phenology: vegetative only.RM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.1394Timothy W. Chumley Irene Thien199571182U.S.A.ColoradoFremontEast-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Texas Creek Gulch off Table Mountain or County Road 217A, ca 3 air mi NNW of town of Texas Creek.-105.597138.440320852417In dry washes and drainages. Phenology: vegetative only.RM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.2432Timothy W. Chumley1995725206U.S.A.ColoradoFremontEast-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: along the north face of Little Crampton Mountain and W along Cottonwood Creek, ca 1.5 air mi W of Colo Hwy 9, ca 13.5 air mi WNW of Canon City.-105.448838.568820732347On the banks of the creek. Phenology: vegetative only.RM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.645Timothy W. Chumley199566157U.S.A.ColoradoPuebloEast-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Fort Carson: ca 2 air mi NW of Stone City; ca 8 air mi NE of Penrose; ca 21 air mi NW of Pueblo.-104.911338.46981713Highly disturbed roadside and adjacent weedy plains and calcareous cliffs. Phenology: vegetative only.RM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.887Timothy W. Chumley1995616167U.S.A.ColoradoFremontEast-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Sand Gulch S along a drainage intersecting Sand Gulch Road ca 1.2 road mi from intersection with Colo Hwy 9, ca 15 air mi NW of Canon City.-105.448838.583121032134In a coarsely sandy, highly disturbed wash. Phenology: vegetative only.RMRM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.8510Amy J. Roderick1998821233U.S.A.WyomingNatronaUpper North Platte and Laramie River Drainages: North Platte River near Fort Caspar, ca 0.5 air mi S of Mills townsite.-106.371942.84381554Willows, cottonwoods, and gravelly banks of river. Phenology: vegetative only.RM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4543Timothy W. Chumley1996714196U.S.A.ColoradoFremontEast-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: East Gulch: along East Gulch and surrounding slopes and ridges, at end of County Road 27, ca 5.2 air mi N of town of Texas Creek. C1/2-105.578538.468921952560In a deeply eroded, moderately shaded rocky wash with a small running stream. Phenology: vegetative only.RM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4738Timothy W. Chumley1996717199U.S.A.ColoradoJeffersonEast-central Colorado: Mosquito Range to Plains: Platte Canyon: along the South Platte River and adjacent canyons and ridges ca 4.7 air mi NE of town of South Platte.-105.138539.468317072103Along the banks of the river and adjacent roadway. Phenology: vegetative only.RM Populus deltoides var. occidentalisphysical specimenSalicaceaePopulusdeltoidesvar. occidentalisRydb.4958Timothy W. Chumley1996722204U.S.A.ColoradoFremontEast-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Beaver Creek State Wildlife Area: along Beaver Creek and adjacent meadows, ridges and gulches off County Road 132 at terminus, ca 15 air mi NE of Canon City.-105.003538.570818531914On the sandy-gravelly banks of the creek. Phenology: vegetative only.RMRM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn63515B. E. Nelson2004924268U.S.A.ArizonaCoconinoCoconino National Forest: from the observation point along County Road 3 (Forest Hwy 3) 0.5 mi out into Morman Lake bed, SSE of Bass Point, ca 20 air mi SE of Flagstaff.-111.438134.963121642225Thickets between base of basalt cliffs and old lake shore. Phenology: vegetative only.RMRM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn80413Ronald L. Hartman James F. Fowler2004828241U.S.A.ArizonaYavapaiCoconino National Forest: Sterling Canyon, W of Oak Creek Canyon.-111.768734.939715121564Oak/pine woodland. Phenology: vegetative only.RMRM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn63808B. E. Nelson James F. Fowler2005420110U.S.A.ArizonaCoconinoCoconino National Forest: Casner Research Natural Area: Casner Canyon E of Oak Creek, ca 2 air mi N of Munds Mountain, ca 3 air mi NE of Sedona.-111.728234.893314111432Boulder filled stream channel and adjacent chaparral or Arizona cypress forest. Phenology: fruiting.RMRM788232 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn30774Erwin F. Evert199664156U.S.A.MontanaCarbonRidge 2.5 mi SW of Fromberg and 3/4 mi W of U.S. Highway 310.-108.935245.35591150Along irrigation ditch with Equisetum arvense, Iva axillaris, and Alopecurus arundinaceus. Phenology: buds.RMRM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn84413Ronald L. Hartman James F. Fowler2006919262U.S.A.ArizonaGilaTonto National Forest: ca 3 air mi W of Mogollon Rim Visitor Center at Two Sixty Trailhead.-110.95134.307620122042Mixed conifer with herbaceous understory. Phenology: vegetative only.RM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn1453James F. Fowler C. L. May1993624175U.S.A.ColoradoMoffatDinosaur National Monument: Bench Hanging Garden, Blind Canyon.1786Hanging garden.RM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn56278Ronald L. Hartman Kevin J. Taylor1997516136U.S.A.ColoradoDeltaNorthern Gunnison Basin: Elephant Hill, west portion, ca 2.5 air mi ESE of Paonia.-107.545338.851617742048Squaw-apple, serviceberry, mountain mahogany, and juniper zone below and sparsely vegetated shale slopes above with some pinyon-juniper. Phenology: vegetative only.RM778432 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn4883Kevin J. Taylor1998515135U.S.A.ColoradoDeltaNorthern Gunnison Basin: ca 4 air mi NNE of Crawford.-107.601138.76361890Pinyon pine and juniper forest; Cercocarpus and Amelanchier. Phenology: vegetative only.RMRM945759 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn81037Ronald L. Hartman Jill E. Larson2005527147U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: NM Hwy 554, ca 7 air mi S of El Rito.-106.186436.242318901920Sandstone benches and draws, roadside and river bottom. Phenology: vegetative only.RMRM955887 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn67923B. E. Nelson2006517137U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Juan Jose Lobato Grant: along Forest Road 23, N of the flagstone quarry and a tributary of Arroyo de Comales, ca 6 air mi NW of Abiquiu.-106.390336.275420422128Bottom of a sandstone canyon. Phenology: vegetative only.RMRM955888 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn10527Jill E. Larson2006816228U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Juan Jose Lobato Grant: Arroyo del Cobre, ca 1 3/4 air mi W of Abiquiu, N of Abiquiu Elementary School, up Arroyo past Cerrito de la Ventana.-106.337136.21991890Major wash with tamarisk, Chrysothamnus nauseosus, Sporobolus species, and Bouteloua species on San Rafael and Chinle formation sandstones. Phenology: vegetative only.RMRM955890 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn4919Jill E. Larson2006518138U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: NM Hwy 580 along South Fork Embudo Creek, ca 3 air mi SSE of Dixon.-105.821136.16751966Riparian area along creek with Populus species and Tamarix. Phenology: vegetative only.RMRM955889 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn9139Jill E. Larson2006725206U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Red Wash Canyon on north side of U.S. Hwy 84, ca 4 air mi WNW of Abiquiu.-106.376336.23161859Pinyon/juniper woodland with Opuntia phaeacantha; sandy, dry wash lined with Fallugia paradoxa; Chinle formation and Entrada sandstones. Phenology: vegetative only.RMRM955886 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn81849Ronald L. Hartman2006519139U.S.A.New MexicoTaosCarson National Forest and Vicinity: Agua Caliente Canyon from dirt road immediately south to BLM land and bottom of canyon.-105.767536.264218902042Pinyon/juniper above and on slopes, some cotton wood in canyon bottom. Phenology: vegetative only.RMRM955885 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn81933Ronald L. Hartman2006521141U.S.A.New MexicoTaosCarson National Forest and Vicinity: Rimrock southeast of junction NM Hwy 75 and 68, dirt road and wash.-105.909836.206317682103Rocky and sandy slopes with volcanic rimrock and rubble; low slopes and creek bed. Phenology: vegetative only.RMRM955884 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn81969Ronald L. Hartman2006522142U.S.A.New MexicoTaosCarson National Forest and Vicinity: ca 1.5 mi SW on NM Hwy 68 from NM Hwy 75, ca 0.5 mi SW along Rio Grande.-105.93836.21141783Roadside to river edge. Phenology: fruiting.RMRM955883 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn82070Ronald L. Hartman2006522142U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: ca 6 air mi SE of Dixon.-105.83136.17251945Sandy draw and stream bottom. Phenology: vegetative only.RMRM955882 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn82134Ronald L. Hartman2006522142U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: NM Hwy 68, just south of Taos county line.-105.83136.17251993Phenology: vegetative only.RMRM955881 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn83622Ronald L. Hartman2006821233U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: NM Hwy 518 along Rio Grande del Rancho, 0.5 mi S of Forest Service boundary.-105.585236.32432164Roadside and creek margin. Phenology: vegetative only.RM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn761Margarette J. Lyon1993510130U.S.A.ColoradoMontroseSan Miguel and lower Dolores River Drainages: Uncompahgre Plateau: Atkinson Creek.-108.749838.40171554Riparian area along creek with Populus angustifolia and sandy benches with Artemisia tridentata. Phenology: vegetative only.RM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn2717Margarette J. Lyon199456126U.S.A.UtahGrandSan Miguel and Lower Dolores River Drainages: Dolores River Drainage: Dewey: confluence of Dolores and Colorado Rivers.-109.287138.81931250Streamside. Phenology: fruiting.RM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn3505Margarette J. Lyon1994526146U.S.A.UtahGrandSan Miguel and Lower Dolores River Drainages: Buckhorn Draw.-109.179139.55581402Stream bed in dry, sandy wash with pinyon and juniper. Phenology: fruiting.RM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn6648Margarette J. Lyon Laura Cosse199483215U.S.A.ColoradoMesa[location and coordinates withheld]14451585Dry creek bed and canyon bottom with pinyon, juniper, and single leaf ash. Phenology: fruiting.RM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn7266Margarette J. Lyon1994812224U.S.A.ColoradoMesaSan Miguel and Lower Dolores River Drainages: Unaweep Canyon along West Creek.-108.893838.71851615Riparian area with Populus and Salix exigua. Phenology: fruiting.RM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn7293Margarette J. Lyon1994814226U.S.A.UtahGrandSan Miguel and Lower Dolores River Drainages: along Dolores River.-109.250238.81931341Riparian area along river with Salix exigua and Tamarix. Phenology: vegetative only.RM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn7330Margarette J. Lyon1994814226U.S.A.UtahGrandSan Miguel and Lower Dolores River Drainages: Dolores River Drainage: Cottonwood Canyon.-109.223438.70381463Dry creek bed with Populus deltoides, Populus angustifolia, and Populus deltoides x angustifolia. Phenology: vegetative only.RM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn7516aMargarette J. Lyon1994818230U.S.A.ColoradoMesa[location and coordinates withheld]1615Along dry creek bed with pinyon, juniper, and occasional Populus. Phenology: vegetative only.RM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn7555Margarette J. Lyon1994818230U.S.A.ColoradoMesa[location and coordinates withheld]1402Edge of irrigated alfalfa pasture. Phenology: vegetative only.RM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn1289Lynn Marie Moore1994426116U.S.A.ColoradoMontezumaUpper Dolores River Drainage and Adjacent Areas: McElmo Canyon Area: Yellow Jacket Canyon, 3.3 road mi N of Ismay Trading Post; ca 21 air mi W of Cortez.-108.963337.36371550Scattered shrubs, sagebrush, greasewood, Amelanchier, Ribes and rabbitbrush with occasional juniper on rocky slopes above and around creek. Phenology: fruiting.RM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn4582Lynn Marie Moore1995531151U.S.A.ColoradoMontezumaUpper Dolores River Drainage and Adjacent Areas: ca 13 air mi W of Cortez, County Road N, north end of Sand Canyon.-108.781537.378317071768Pinyon-juniper, Amelanchier, Purshia, and Cercocarpus on cryptogrammic soil and rimrock pavement; anasazi ruins present; east facing slopes. Phenology: vegetative only.RM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn4634Lynn Marie Moore199561152U.S.A.ColoradoMontezumaUpper Dolores River Drainage and Adjacent Areas: ca 12 air mi NW of Cortez at Burro Canyon, unmarked road W of County Road N.-108.872437.407418291951Scattered pinyon-juniper woodland, Artemesia, Amelanchier, and Purshia on north-facing slope. Phenology: vegetative only.RM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn4677Lynn Marie Moore Marie Rambo199561152U.S.A.ColoradoMontezumaUpper Dolores River Drainage and Adjacent Areas: ca 9 air mi W of Cortez, ca 1 mile W of County Road 16, south side of County Road N, at Sand Canyon Peublo.-108.781537.392820122073Dense pinyon-juniper and Quercus woodland, Artemesia, Purshia, Paraphyllum, Anasazi ruins present. South-facing slope. Phenology: vegetative only.RM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn4720Lynn Marie Moore199562153U.S.A.ColoradoMontezumaUpper Dolores River Drainage and Adjacent Areas: ca 14 air mi NW of Cortez in Sandstone Canyon, County Road W.-108.839737.493718292012Pinyon-juniper woodland, Purshia, Artemesia, and rabbitbrush on west-face of canyon and riparian area along creek. Phenology: vegetative only.RM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn4990Lynn Marie Moore199565156U.S.A.ColoradoMontezumaUpper Dolores River Drainage and Adjacent Areas: ca 7.5 air mi W of Mancos, County Road 34, N of U.S. Hwy 160.-108.436137.36372012Pinyon-juniper, Atriplex, Purshia, and Artemesia with selenium odor along a creek; west-facing. Phenology: vegetative only.RM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn6202Lynn Marie Moore1995629180U.S.A.ColoradoMontezumaUpper Dolores River Drainage and Adjacent Areas: State Wildlife Area: ca 9.5 air mi NW of Cortez at Narraguinnep Reservoir, intersection of County Road 23 and Colo. Hwy 194.-108.640137.493720362042Pinyon-juniper, cottonwood, sagebrush, and rabbitbrush on west facing mancos shale soils. Phenology: vegetative only.RM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn6363Lynn Marie Moore199575186U.S.A.ColoradoMontroseUpper Dolores River Drainage and Adjacent Areas: Slick Rock Canyon, ca 19 air mi W of Naturita, at mouth of Spring Canyon and surrounding areas northside of Dolores River.-108.897638.226315541585Salix, Fraxinus, Tamarisk, and pinyon-juniper on a west facing side canyon. Phenology: vegetative only.RM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn8044aLynn Marie Moore Sierra Smith1995730211U.S.A.ColoradoMontezumaUpper Dolores River Drainage and Adjacent Areas: San Juan National Forest: Forest Road 527E, ca 3 air mi NE of Dolores at the Boggy Draw Area, Morgan Cabin Reservoir.-108.440537.508423412347Ponderosa pine forest, aspen grove and rimrock pavement surrounding wetland and reservoir; west face. Phenology: vegetative only.RMRM815098 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn2079Brian Reif2002711192U.S.A.New MexicoRio ArribaSanta Fe National Forest and Vicinity: Jemez Mountains: Canyon de la Alameda to Rio Gallina, 14 air mi NNE of Gallina. SW for 1 air mi in canyon to Rio Gallina then 0.4 air mi E along river.-106.75198336.41406720422103Steep-walled drainage of mixed conifers. Phenology: vegetative only.RMRM815097 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn2585Brian Reif2002718199U.S.A.New MexicoRio ArribaSanta Fe National Forest and vicinity: Jemez Mountains: Arroyo de los Frijoles, 2.5 air mi W of Abiquiu. From corral at start of Barranca Trail 111 3.4 air mi S to Frijoles Spring.-106.35741736.21008318332134Riparian through canyon of soft sedimentary rock in pinyon/juniper woodland. Excised drainage choked with clover. Phenology: vegetative only.RMRM815100 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn287Brian Reif200267158U.S.A.New MexicoSandovalSanta Fe National Forest and Vicinity: Jemez Mountains: NM Hwy 4 at Soda Dam, 1.7 air mi N of Jemez Springs; S 0.5 mi to bridge.-106.6867535.79228319261932Riparian of river. Phenology: vegetative only.RMRM815099 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn313Brian Reif200267158U.S.A.New MexicoRio ArribaSanta Fe National Forest and Vicinity: Jemez Mountains: Forest Road 27 at headwaters of Polvadera Creek, 7.5 air mi SW of Abiquiu, along creek for 1.1 mi.-106.4222536.1529521462323Riparian. Phenology: vegetative only.RMRM815089 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn74415Ronald L. Hartman Brian Reif and Brian Jacobs2002524144U.S.A.New MexicoLos AlamosSanta Fe National Forest and Vicinity: Jemez Mountains: White Rock Canyon, Red Dot Trail to Pajarito Springs, the Rio Grande and down stream ca 1 mi; 2 - 2.5 air mi S of White Rock.-106.20346735.809916461768Rocky slopes along trail, stream, wet areas. Phenology: vegetative only.RMRM815088 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn74621Ronald L. Hartman Brian Reif and Jim Fowler2002527147U.S.A.New MexicoSandovalSanta Fe National Forest and Vicinity: Jemez Mountains: Canyon de San Diego, Lower Jemez Campground, south to ca 2 air mi along Jemez River.-106.7245535.71233317511798Riparian with cottonwood, willow, and roadsides. Phenology: fruiting.RMRM815087 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn75058Ronald L. Hartman2002622173U.S.A.New MexicoSandovalSanta Fe National Forest and Vicinity: Jemez Mountains: Forest Road 10, ca 2 road mi NNE of Ponderosa at entrance to National Forest.-106.65208335.68691961Roadside, streamside. Phenology: vegetative only.RMRM815086 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn75169Ronald L. Hartman2002623174U.S.A.New MexicoSandovalSanta Fe National Forest and Vicinity: Jemez Mountains: intersection of NM Hwy 485 and NM Hwy 4.-106.74308335.6678831740Roadside and river margin. Phenology: vegetative only.RMRM815085 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn75731Ronald L. Hartman2002712193U.S.A.New MexicoSandovalSanta Fe National Forest and Vicinity: Jemez Mountains: NM Hwy 4, ca 1.5 road mi from NM Hwy 126, Dark Canyon trailhead.-106.63178335.85222234Roadside. Phenology: vegetative only.RMRM815084 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn75952Ronald L. Hartman2002717198U.S.A.New MexicoRio ArribaSanta Fe National Forest and Vicinity: Jemez Mountains: Arroyo del Toro, 0.5 air mi up stream from U.S. Hwy 84.-106.18573336.1469671798Sandy streambed. Phenology: vegetative only.RMRM815083 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn75997Ronald L. Hartman2002718199U.S.A.New MexicoRio ArribaSanta Fe National Forest and Vicinity: Jemez Mountains: Canyon Madera, first mile from road.-106.21763336.1747831815Sandy slopes and stream bottom. Phenology: vegetative only.RMRM815082 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn76355Ronald L. Hartman2002813225U.S.A.New MexicoRio ArribaSanta Fe National Forest and Vicinity:Jemez Mountains: 14 air mi NNE of Espanola on U.S. Hwy 285.-106.04713336.2127831857Roadside. Phenology: vegetative only.RMRM815081 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn76383Ronald L. Hartman2002813225U.S.A.New MexicoRio ArribaSanta Fe National Forest and Vicinity: Jemez Mountains: 6.5 road mi N of Espanola; intersection of U.S. Hwy 285 and NM Hwy 74, to 1 mi SE.-106.10651736.0770671756Roadside. Phenology: vegetative only.RMRM815096 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn4709Brian Reif2003531151U.S.A.New MexicoRio ArribaSanta Fe National Forest and Vicinity: Jemez Mountains: along road to immediate S of Rio Chama, 1.5 road mi (est.) W of edge of Abiquiu Land Grant.-106.369236.21841829Roadside between river and 40 deg, north-facing sedimentary bank of pinyon/juniper. Phenology: vegetative only.RMRM815095 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn4831Brian Reif200362153U.S.A.New MexicoSan MiguelSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: on NM Hwy 3 along Pecos River W of Villanueva State Park, 10 air mi SSE of I-25/NM Hwy 3 junction.-105.371435.27241768Roadside corridor with pinyon/juniper woodland on sedimentary slope to north; irrigation ditch and riparian of cottonwood, Russian olive to south. Phenology: vegetative only.RMRM815094 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn5875Brian Reif2003623174U.S.A.New MexicoSanta FeSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: County Road 503 N into La Caja Canyon on Debris Basin Trail and along Rio Medio to southern end of Santa Cruz Reservoir, 1 air mi W of Cundiyo.-105.91235.9591993Pinyon/juniper slopes and dry wash. Phenology: vegetative only.RMRM815093 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn5953Brian Reif2003624175U.S.A.New MexicoRio ArribaSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Arroyo de los Encinos, 3.5 air mi ENE of Chimayo; from small springs and mature cottonwoods at base of sedimentary formation/cliffs to S 0.3 air mi in dry wash.-105.92336.0319812018Desert shrubland with spring above and narrow, excised dry wash through soft sediment below. Phenology: vegetative only.RMRM815092 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn9415Brian Reif200392245U.S.A.New MexicoSan MiguelSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Anton Chico Grant: Pecos River at prominent oxbow, 5 air mi ENE of Villanueva.-105.280435.26951710Grazed, north, sedimentary bank of river dominated by Russian olive. Phenology: vegetative only.RMRM815091 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn9775Brian Reif200461153U.S.A.New MexicoSanta FeSanta Fe National Forest and Vicinity: Jemez Mountains: Caja del Rio Plateau: County Road 77 (Buckman Road) at Rio Grande River and Buckman, 2 air mi due E of White Rock. N35.836 W106.161 SW 0.4 air mi along riverbank.-106.16135.8361667Russian olive and tamarisk, also, steep and loose west-facing sedimentary slope. Phenology: vegetative only.RMRM815090 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn9821Brian Reif200462154U.S.A.New MexicoSanta FeSanta Fe National Forest and Vicinity: Jemez Mountains: Caja del Rio Plateau: Caja del Rio Canyon from County Road 77 (Buckman Road), ca 4 air mi ESE of White Rock. Within 0.4 air mi of N35.806 W106.142, up or down canyon.-106.14235.8061756Narrow dry wash with juniper and tamarisk through sheer cliffs of columnarly-jointed volcanic rock. Phenology: vegetative only.RMRM523587 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn4837Robert D. Dorn1987829241U.S.A.WyomingSweetwater-108.190941.09852042Edge of wash with Chrysothamnus and Bromus. Tree 5 in DBH. Phenology: vegetative only.RMRM399023 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn4863Robert D. Dorn1987923266U.S.A.WyomingCarbonLittle Snake River.-107.848741.0261859Flood plain with P. Angustifolia and Salix amygdaloides. Tree 2 ft. DBH. Phenology: vegetative only.RMRM595005 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn5610Robert D. Dorn1994530150U.S.A.WyomingSweetwater4 mi W of Carbon County; 1 3/4 mi of Colorado.-108.001941.0262012Dry wash with Artemisia, Chrysothamnus. Tree 14 in DBH. Phenology: fruiting.RMRM523587 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn4837Robert D. Dorn1987829241U.S.A.WyomingSweetwater-108.190941.09852042Edge of wash with Chrysothamnus and Bromus. Phenology: vegetative only.RMRM399023 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn4863Robert D. Dorn1987923266U.S.A.WyomingCarbonLittle Snake River.-107.848741.0261859Flood plain with P. Angustifolia and Salix amygdaloides. Phenology: vegetative only.RMRM595005 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn5610Robert D. Dorn1994530150U.S.A.WyomingSweetwater4 mi W of Carbon County; 1 3/4 mi of Colorado.-108.001941.0262012Dry wash with Artemisia, Chrysothamnus. Phenology: fruiting.RMRM131683 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn429Aven Nelson Ruth A. Nelson19321019293U.S.A.New MexicoTaosTaos: Cottonwood Canyon.Bottom lands. Phenology: vegetative only.RMRM165967 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn268Carl F. Baker18996152U.S.A.ColoradoArchuletaArboles.Phenology: vegetative only.RMRM22520 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn268Carl F. Baker1899615166U.S.A.ColoradoArchuletaArboles.River bottom. Phenology: vegetative only.RMRM101305 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn1182Edwin B. Payson1917822234U.S.A.ColoradoMontroseAlong Dry Creek below Naturita.Along Dry Creek below Naturita. Phenology: vegetative only.RMRM102194 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn3916Edwin B. Payson Lois Payson1924711193U.S.A.ColoradoMontroseWestern Montrose County.1646Common in river bottom. Phenology: vegetative only.RMRM75517 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn141Ernest P. Walker1912619171U.S.A.ColoradoMontroseParadox.1646Creek bank. Phenology: vegetative only.RMRM755005 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn1191Harold D. Harrington E. C. Smith1945623174U.S.A.ColoradoMontezumaMcElmo Canyon, 20 mi SW of Cortez.1707Along roadside. Phenology: fruiting.RMRM268503 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn62-10Paul H. Freytag1962821233U.S.A.ColoradoGarfieldN of Rifle.Phenology: vegetative only.RMRM530846 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn4925Robert D. Dorn1988525146U.S.A.ColoradoMesa2 mi NW of Gateway.1402Bank of Dolores River with Forestiera, Tamarix. Phenology: fruiting.RMRM681519 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn8364Robert D. Dorn2000726208U.S.A.New MexicoRio Arriba-107.281736.72332073Edge of wash with Salix exigua, Chrysothamnus. Phenology: vegetative only.RMRM681524 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn8369Robert D. Dorn2000726208U.S.A.ColoradoMontezumaJust N of Mancos River along Highway 666 or ca 16 mi E of the Four Corners.1493Roadside ditch with Ulmus. Phenology: fruiting.RMRM681540 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn8385Robert D. Dorn2000727209U.S.A.ColoradoDoloresNear Cahone.-108.80537.7116672103Drainage bottom with Populus acuminata, Salix exigua. Phenology: vegetative only.RMRM681552 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn8397Robert D. Dorn2000728210U.S.A.ColoradoLa PlataN edge of Durango along Highway 550.1920Edge of dry pond with Salix exigua, Populus angustifolia. Phenology: vegetative only.RMRM718142 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn9508Robert D. Dorn2002814226U.S.A.ColoradoSan MiguelAlong H1 Road ca 1.25 mi SW of Egnar.-108.96333337.912164Edge of reservoir with Chrysothamnus, Artemisia. Phenology: vegetative only.RMRM296553 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn1980Ronald L. Hartman1968617169U.S.A.New MexicoColfaxPhilmont Scout Ranch: near Cimarron, 1 me E of Webster Reservoir.-104.9980936.492492134Common around lake. Phenology: fruiting.RMRM344763 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn3791Vlad Siplivinsky Hans Beck198279190U.S.A.ColoradoMesaColorado National Monument: Pinon-juniper woodland between Glade Park Road and rim of No Thoroughfare Canyon.2012Pinyon-juniper woodland. Phenology: fruiting.RMRM345014 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn83-110W. Baker S. Kennedy198378189U.S.A.ColoradoMoffatca 1.5 mi E of Maybell near mouth of Deception Creek.1807Scattered on moist sites with Salix. Phenology: vegetative only.RMRM78964 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn8W. H. Haas19137182U.S.A.ColoradoMontezumaMesa Verde National Park.Phenology: vegetative only.RMRM132400 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn10175Aven Nelson1925414104U.S.A.New MexicoBernalilloSouth of Albuquerque, near the Rio Grande.Phenology: fruiting.RMRM132399 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn10185Aven Nelson1925416106U.S.A.ArizonaApacheNear Concho.-109.60234.47741890Creek and dtich banks. Phenology: fruiting.RMRM128198 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn1252Earl F. Castetter1931522142U.S.A.New MexicoBernalilloAlbuquerque to Santa Fe: highway.-106.6380935.1584915091530Roadside. Phenology: vegetative only.RMRM165966 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn3258E. O. Wooton Paul Standley190751121U.S.A.New MexicoDona AnaMesilla Valley.1173Phenology: fruiting.RMRM310589 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn3392E. O. Wooton Paul Standley19074595U.S.A.New MexicoDona AnaMesilla Valley.1173Phenology: fruiting.RMRM58289 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorns.n.E. O. Wooton18994797U.S.A.New MexicoDona AnaMesilla Valley.Phenology: fruiting.RMUSFS444463 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn12893Elbert L. Little Jr.19504292U.S.A.New MexicoDona AnaSan Andres Mountains: Ropes Spring, Dona Ana Jornada Experimental Range.1707Slope 10 degrees; draw or arroyo site, semidesert shrub type. Phenology: fruiting.RMUSFS444676 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn33Leon C. Hurtt1915107280U.S.A.New MexicoDona AnaJornada Range Reserve: near Ropes Springs.1402Slope west; dry rocky soil. Phenology: vegetative only.RMRM681522 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn8367Robert D. Dorn2000726208U.S.A.New MexicoSan JuanAlong Hy. 64 at Blanco.1676Roadside ditch with Salix exigua, S. amygdaloides. Phenology: vegetative only.RMRM702759 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn8812Robert D. Dorn200171182U.S.A.ArizonaApache36 degrees 56.6'N 109 degrees 42.6'W, Chinle Creek at U.S. Hwy 160.-109.710433.94441432Stream bank with Salix exigua, Tamarix. Phenology: vegetative only.RMRM547384 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn13675R. D. Worthington1988424115U.S.A.New MexicoDona AnaBishops Cap, 2 air km NNW of Bishop's Cap.1280On N limestone slope. Phenology: vegetative only.RMRM332607 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn7012Keith H. Dueholm1979618169U.S.A.WyomingNiobrara[location and coordinates withheld]1341Sandy flats above creek, rich, moist meadows along creek, sandy plains; flats. Phenology: vegetative only.RMRM905917 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn5399Ben Legler200772183U.S.A.New MexicoColfaxVermejo Park Ranch: along banks of Ponil Creek 2.6 air mi E of Cimarron.-104.866805636.508027781928Flowing stream with silty eroding banks, creek bed dominated by Acer negundo, Salix exigua, Phragmites australis. Large trees with broad crowns; local. Photographed. Phenology: fruiting.RMRM905916 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn5495Ben Legler200773184U.S.A.New MexicoColfaxVermejo Park Ranch: along creek in Caliente Canyon 0.2 air mi upstream from junction with Mercer Canyon.-104.802536.814166672152Small flowing creek surrounded by wet Juncus marsh below dike for manmade pond. Large trees; locally common. Phenology: vegetative only.RMRM905915 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn6067Ben Legler2007716197U.S.A.New MexicoColfaxVermejo Park Ranch: along banks of Vermejo River just downstream from (E of) mouth of Van Bremmer Creek; 3.8 air mi SE of Colfax.-104.690805636.556111111852Riparian zone, covered by recently sprayed and killed Salix and Tamarix thickets, now devegetated except for scattered Conyza and Cirsium arvense; river bed dominated by Schoenoplectus, Juncus, Polypogon, Potamogeton. Large trees scattered on edge of river bed; a few apparently killed by spraying. Phenology: vegetative only.RMRM905914 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn8169Ben Legler2008527148U.S.A.New MexicoColfaxVermejo Park Ranch: along north side of Dry Arroyo 2.3 air mi NW of French Corners and 1.6 air mi W of I-25.-104.61692836.4775351790Dry stony soil, gentle south lope; dominated by Opuntia polyacantha and scattered tufts of grass. Trees widely scattered along arroyo. Specimen GPS: 36.486946, -104.642365. Phenology: vegetative only.RMRM905913 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn8510Ben Legler200866158U.S.A.New MexicoColfaxVermejo Park Ranch: along Cerrososo Creek 0.2 air mi W of mouth of Bat Canyon; 5.8 air mi NNE of Cimarron.-104.86481536.5850942028Deep canyon with steep sandstone walls and small flowing creek lined by Populus angustifolia, P. deltoides, and P. Ă—acuminata. Single large tree along creek, with Populus angustifolia and P. Ă—acuminata. Photographed. Specimen GPS: 36.584873, -104.864845. Phenology: fruiting.RMRM905912 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn8558Ben Legler200867159U.S.A.New MexicoColfaxVermejo Park Ranch: Dry arroyo on northeast side of Cerrososo Creek 1.9 air mi upstream (NW) from NM Hwy 64; 5.5 air mi NE of Cimarron.-104.84036336.5679781975Dry arroyo surrounded by open Pinus edulis woodland. Single large tree in creek channel. Specimen GPS: 36.56815, -104.840248. Phenology: vegetative only.RMRM905911 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn9979Ben Legler2008719201U.S.A.New MexicoColfaxVermejo Park Ranch: flats on south side of the Cimarron River 2.6 air mi W of Cimarron.-104.96277636.5134162010Dry shortgrass prairie, gravelly soil; with Cylindropuntia imbricata, Krascheninnikovia lanata, and Gutierrezia sarothrae. Large sterile trees; locally common. Specimen GPS: 36.508919, -104.933434. Phenology: vegetative only.RMRM905910 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn10497Ben Legler200889222U.S.A.New MexicoColfaxVermejo Park Ranch: along south side of the Vermejo River 0.8 air mi E of I-25; 3.2 air mi SSW of Maxwell.-104.55903636.4895251784River bottoms and adjacent dry washes, with Salix exigua, Helianthus annuus, and Schizachyrium scoparium; silty soil. Large trees in river bottom; local. Specimen GPS: 36.490826, -104.560287. Phenology: vegetative only.RMUSFS Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn79024B. E. Nelson Lori E. Brummer201052122U.S.A.ColoradoMesaIn De Beque Canyon along the Colorado River at the southeast base of Beavertail Mountain, ca 7.5 air mi NE of Palisade.-108.271239.19231463Base of sandstone cliffs along old highway in the canyon. Phenology: vegetative only.RMRM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn89313Ronald L. Hartman Michael K. Kirkpatrick, Josh Irwin201052122U.S.A.ColoradoMesaColorado River Valley: Plateau Creek Canyon: Plateau Creek to Silvey Flats, ca 2 air mi ENE of I-70 on Colo Hwy 65 or 20 mi NE of Grand Junction at intersection of U.S. Hwy 50 and U.S. Hwy 6.-108.244539.191514931615Creek bottom near vehicle up slope and over rimrock on west exposure to canyon rim; juniper dominated slope. Phenology: flowering & fruiting.RMRM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn5177Michael K. Kirkpatrick2011526146U.S.A.ColoradoMesaBattlement Mesa: White River National Forest: creek below Bull Basin between waterfall and USFS boundary, ca 1-2 air mi NNW of Housetop Mountain and ca 7 air mi S of Parachute.-108.062939.336217682042Oak, juniper, and mixed shrub woodland with shaded ravines. Phenology: vegetative only.RMRM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn5265Michael K. Kirkpatrick2011529149U.S.A.ColoradoMesaBattlement Mesa: hills and slopes N of Pete and Bill Creek and S of High Mesa, ca 5 air mi N of Horse Mountain and ca 4 air mi S of Parachute.-108.03339.392718291890Ephemeral riparian corridor through juniper and mountain shrub habitats. Phenology: fruiting.RMRM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn5557Michael K. Kirkpatrick201162153U.S.A.ColoradoMesaBattlement Mesa: White River National Forest: Little Alkali Creek Canyon upstream of confluence with creek leading to Bull Basin, ca 1 air mi NW of Housetop Mountain and 7 air mi E of De Beque.-108.078239.33118291951Riparian corridor through juniper-oak woodland dominated by cottonwood, willow, and cattail. Phenology: vegetative only.RMRM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn7800Lori E. Brummer2012519140U.S.A.ColoradoMontroseUncompahgre Plateau: Roubideau Creek, above junction with Potter Canyon to 2 trail mi upstream, ca 11 1/4 air mi SW of Delta.-108.179238.619115971646Riparian area in desert canyon. Phenology: fruiting.RMRM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn8293Lori E. Brummer201262154U.S.A.ColoradoMontroseUncompahgre Plateau: Dry Creek SE of Transfer Road, ca 10.5 air mi ENE of Montrose.-108.0649638.533961725Riparian area in salt desert shrub. Phenology: vegetative only.RMRM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn8613Lori E. Brummer2012610162U.S.A.ColoradoMesaUncompahgre Plateau: Dominguez Canyon: between 3 and 4 trail mi down canyon from Dominguez Campground, ca 23 air mi WSW of Delta.-108.500638.760920672085Small riparian area along seep/creek in pinyon/juniper. Phenology: vegetative only.RMRM797332 Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn10179Robert D. Dorn200673184U.S.A.UtahSan JuanComb Wash.-109.66666737.5466671524Dry wash, Artemisia, Atriplex. Tree 18 in DBH; both 3 and 4 carpels. Phenology: fruiting.RMRM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn11670Lori E. Brummer2012910254U.S.A.ColoradoDeltaGunnison Gorge National Conservation Area: Gunnison River, ca 1 mi SW of the confluence of the North Fork and Gunnison rivers, ca 7 air mi WSW of Hotchkiss.-107.852838.77811552Along river in desert shrub community. Phenology: vegetative only.RMRM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn11709Lori E. Brummer2012910254U.S.A.ColoradoDeltaGunnison Gorge Wilderness: West River Trail from wilderness boundary S to where trail ends at cliff, ca 3/4 trail mi from wilderness boundary, ca 7.5 air mi SW of Hotchkiss.-107.836738.748915671582Riparian area in sparse pinyon/juniper/shrub/rock mix. Phenology: vegetative only.RMRM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn12049Lori E. Brummer2012917261U.S.A.ColoradoDeltaUncompahgre Plateau: Little Dominguez Canyon from Poison Canyon to the bend on the east side of Star Mesa, ca 16.5 air mi WNW of Delta.-108.381838.7815361597Sandy soil along low elevation riparian area. Delta and Mesa County Phenology: vegetative only.RMRM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn12117Lori E. Brummer2012919263U.S.A.ColoradoMontroseUncompahgre Plateau: Roubideau Canyon; middle canyon just NW of Camel Back, ca 17 air mi NW of Montrose.-108.182338.561117071719Low elevation riparian area. Phenology: vegetative only.RMUSFS Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn5265Michael K. Kirkpatrick2011529149U.S.A.ColoradoMesaBattlement Mesa: hills and slopes N of Pete and Bill Creek and S of High Mesa, ca 5 air mi N of Horse Mountain and ca 4 air mi S of Parachute.-108.03339.392718291890Ephemeral riparian corridor through juniper and mountain shrub habitats. Phenology: fruiting.RMUSFS Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn79024B. E. Nelson Lori E. Brummer201052122U.S.A.ColoradoMesaIn De Beque Canyon along the Colorado River at the southeast base of Beavertail Mountain, ca 7.5 air mi NE of Palisade.-108.271239.19231463Base of sandstone cliffs along old highway in the canyon. Phenology: vegetative only.RMRM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn79014B. E. Nelson Lori E. Brummer201052122U.S.A.ColoradoMesaBattlement Mesa: Watson Creek from the mouth of the canyon to below The Blowout, ca 4 air mi SE of Palisade.-108.306639.066716921707Stony canyon bottom and roadcut. Phenology: flowering.RMRM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn197Lori E. Brummer201065156U.S.A.ColoradoMontroseTwentyfive Mile Mesa: Potter Canyon, end of Roubideau Canyon Road, ca 5.7 road mi SW from junction with Twentyfive Mesa Road, ca 10.5 air mi SW of Delta.-108.19638.639515851780Riparian area in sandstone canyon. Phenology: vegetative only.RM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn2505C. H. Refsdal Duane Atwood and Lucy Jordan199483215U.S.A.UtahDaggettSouthwestern Wyoming and Adjacent Utah: Browns Park: ca 12 air mi E of Dutch John, 0.5 mi west of Browns Park Road on the east side of the Green River.-109.156440.89431655Muddy flat on river edge. Phenology: vegetative only.RMRM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn2121Lori E. Brummer2010816228U.S.A.ColoradoMesaUncompaghre Plateau: Unaweep Canyon, lower East Creek, ca 25 3/4 air mi NW of Delta.-108.462938.96814291469Riparian area along creek in sandstone canyon. Phenology: vegetative only.RMRM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn2493Lori E. Brummer2011512132U.S.A.ColoradoMesaUncompahgre Plateau: Dominquez Canyon Trail, trailhead to lower Dominquez Canyon, ca 20 air mi NW of Delta.-108.382338.836514511510Riparian area in sandstone canyon. Phenology: fruiting.RMRM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn7055Lori E. Brummer2011814226U.S.A.ColoradoMontroseUncompahgre Plateau: BLM lands off of H54 Road, ca 12 air mi S of Delta.-108.074638.57681728Along irrigation ditch in desert scrub. Phenology: vegetative only.RM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn6354C. H. Refsdal Barbara McNight199581213U.S.A.UtahDaggettSouthwestern Wyoming and Adjacent Utah: Browns Park: Green River, ca 13 air mi ESE of Dutch John; 1.8 mi S of junction of Jarvie Ranch/Browns Park roads on west side Browns Park Road.-109.137340.879816461670River's edge, river rock, clay soils. Phenology: vegetative only.RM Populus deltoides var. wislizeniiphysical specimenSalicaceaePopulusdeltoidesvar. wislizenii(S. Watson) Dorn6368C. H. Refsdal Barbara McNight199581213U.S.A.UtahDaggettSouthwestern Wyoming and Adjacent Utah: Browns Park: Green River, ca 13 air mi ESE of Dutch John; 1.8 mi S of junction of Jarvie Ranch/Browns Park roads on west side Browns Park Road.-109.137340.879816461670River's edge, river rock, clay soils. Phenology: vegetative only.36003,1,0true