Record Number Database Code Specimen ID Project Herbarium Accession Number Barcode NPS Accession NPS Catalog Family Genus 1 Specific Epithet 1 Specific Author 1 Infraspecific Rank 1 Infraspecific Epithet 1 Infraspecific Author 1 Name 1 Qualifier Name 1 Qualifier Position Hybrid Symbol Genus 2 Specific Epithet 2 Specific Author 2 Infraspecific Rank 2 Infraspecific Epithet 2 Infraspecific Author 2 Name 2 Qualifier Name 2 Qualifier Position Conservation Status Annotations Site Key Collector Collector Number Other Collectors Day Collected Month Collected Year Collected Verbatim Collection Date Country State County Locality Site Description Minimum Elevation Maximum Elevation Elevation Unit LatitudeLongitude UTM TRS Decimal Latitude Decimal Longitude Geodetic Datum Coordinate Uncertainty Coordinate Uncertainty Unit Elevation Georeferenced TRS Georeferenced Georeference Sources Georeference Remarks Georeferenced By Specimen Notes Other Notes Phenology Cultivated Images Type Specimen? TypeDetails 1 RM 152416 Evert 1997 RM 818202 RM0021109 Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-16427 Erwin F. Evert 32806 10 6 1997 U.S.A. Montana Carbon Ridge 4 mi NE of Fromberg; 1.5 mi E of U.S. Hwy 310. Disturbed sagebrush-grassland with Agropyron spicatum, Bromus tectorum, and Alyssum alyssoides. 3900 4000 ft. 45.4433° N, 108.8324° W; uncertainty 1 mi. T4S R23E S36 45.4433 -108.8324 1 mi. Flowering and Fruiting N RM0021109 N 2 RM 285281 Lyon 1994 Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-22938 Margarette J. Lyon 6082 15 7 1994 U.S.A. Colorado San Miguel San Miguel and Lower Dolores River Drainages: San Miguel River Drainage: northwest slope of Lone Cone. Tundra near base of scree slopes with Rubus and Aquilegia. 11400 ft. 37.8864° N, 108.2693° W T42N R13W S23 37.8864 -108.2693 Flowering N N 3 RM 573364 R Jones 1991 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-104762 B. E. Nelson 20587 Robin Jones 4 6 1991 U.S.A. Wyoming Fremont Owl Creek/Bridger Mountains: Bridger Mountains: southeast end of Copper Mountain, ca 9 air mi NW of Lysite, ca 40.5 air mi NW of Riverton. Sandy clay flats on sandstone ridge. 5700 6250 ft. 43.3919° N, 107.7639° W; uncertainty 1 mi. T40N R91W S33 43.3919 -107.7639 1 mi. N N 4 RM 573428 Bighorn Basin RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-104764 B. E. Nelson 20645 Robin Jones 5 6 1991 U.S.A. Wyoming Hot Springs Bighorn Basin: Padlock Rim, along a tributary of South Fork Coal Draw, ca 12 air mi NW of Thermopolis. Sandy slopes, flats, and rough breaks with juniper and limber pine. 5000 5340 ft. 43.7378° N, 108.4252° W; uncertainty 1 mi. T44N R96W S31 43.7378 -108.4252 1 mi. N N 5 RM 573536 Bighorn Basin RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-104767 B. E. Nelson 20741 Robin Jones 6 6 1991 U.S.A. Wyoming Hot Springs Bighorn Basin: between Kester Coulee and Prospect Creek, SW of Ilo Ridge, ca 5 air mi SSE of town site of Grass Creek, ca 25-26 air mi NW of Thermopolis. Disturbed and cactus patches in rolling sagebrush-grassland. 5450 5520 ft. 43.88194° N, 108.59861° W; uncertainty 1 mi. T45N R98W S10 43.88194 -108.59861 1 mi. N N 6 RM 573663 Bighorn Basin RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-104769 B. E. Nelson 20856 Robin Jones 8 6 1991 U.S.A. Wyoming Hot Springs Bighorn Basin: above Red Canyon across from Minnesela Slope, ca 4.5 air mi SW of Thermopolis. Old burn area in sagebrush-grassland with no current sagebrush regeneration. 5400 5500 ft. 43.6081° N, 108.2855° W; uncertainty 1 mi. T42N R95W S17 43.6081 -108.2855 1 mi. N N 7 RM 60042 Bradtke 2002 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-12755 Heather Bradtke 4872 30 5 2002 U.S.A. Oregon Umatilla Umatilla National Forest and Vicinity: Forest roads 5916 and 37, ca 4 mi N and 13 mi E of Ukiah. Basalt with fine powdery soil in open mixed conifer, ponderosa pine dominant and Lomatium, Talinum herbaceous dominants; slope <10; aspect south. 4600 4680 ft. 45° 12' 0.34" N, 118° 40' 1.3" W to 45° 11' 59" N, 118° 40' 19.9" W to 45° 11' 46.3" N, 118° 39' 57.5" W; GPS Reading zone 11, 5006498E, 368664N; GPS Reading T4S R33E S24; also S25 45.200094 -118.667028 GPS Reading Flowering N N 8 RM 60123 Bradtke 2002 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-12756 Heather Bradtke 4953 30 5 2002 U.S.A. Oregon Umatilla Umatilla National Forest and Vicinity: ca 6 mi S and 6 mi E of Ukiah. Open mixed conifer, ponderosa pine, Larix, juniper and grand fir on a slope near the road with Lomatium in basalt rock and fine powdery soil; slope 15; aspect northeast 5025 ft. 45° 3' 4.1" N, 118° 48' 36.5" W; GPS Reading zone 11, 4990225E, 357464N; GPS Reading T6S R32E S13 45.051139 -118.810139 GPS Reading Flowering N N 9 RM 60272 Bradtke 2002 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-12759 Heather Bradtke 5102 1 6 2002 U.S.A. Oregon Umatilla Umatilla National Forest and Vicinity: Horseshoe Ridge, ca 5 mi NE of Meacham. Open area with Wyethia and Balsamorhiza; shallow soil over basalt; slope 0-10; aspect ridgetop and easterly. 4000 4500 ft. 45° 31' 28" N, 118° 19' 46.6" W; GPS Reading zone 11, 5042071E, 396168N; GPS Reading T1N R36E S33; also S32 45.524444 -118.329611 GPS Reading Flowering N N 10 RM 620447 R Jones 1991 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-107410 Ronald L. Hartman 29187 27 6 1991 U.S.A. Wyoming Fremont Owl Creek/Bridger Mountains: Bridger Mountains: southwest end of Lysite Mountain, ca 11 air mi N of Lost Cabin. Alternating strata of limestone and sandstone outcrops with scattered juniper. 6300 6900 ft. 43.4361° N, 107.6231° W T40N R90W S15 43.4361 -107.6231 N N 11 RM 620656 R Jones 1991 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-107415 Ronald L. Hartman 29396 28 6 1991 U.S.A. Wyoming Hot Springs Owl Creek/Bridger Mountains: Bridger Mountains: Red Canyon, Buffalo Creek Road, ca 14 air mi ENE of Thermopolis. Red beds; grassy slopes and outcrops. 5500 5600 ft. 43.5797° N, 107.9469° W T42N R92W S30 43.5797 -107.9469 N N 12 RM 620979 R Jones 1991 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-107423 Ronald L. Hartman 29718 30 6 1991 U.S.A. Wyoming Fremont Owl Creek/Bridger Mountains: Bridger Mountains: Birdseye Pass to summit to west. Shale slopes below, limestone outcrops above with sagebrush predominating. 7000 7300 ft. 43.45° N, 108.0828° W T40N R94W S11 43.45 -108.0828 N N 13 RM 64372 Bradtke 2002 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-12875 Heather Bradtke 9192 22 7 2002 U.S.A. Washington Garfield Umatilla National Forest and Vicinity: Devils Tailbone Ridge, ca 2 mi S and 15 mi W of Anatone. Grass dominated ridgetop. 5400 5500 ft. 46° 9' 46" N, 117° 27' 15" W; GPS Reading zone 11, 5112241E, 464937N; GPS Reading T8N R43E S17; also S20 46.162778 -117.454167 GPS Reading Fruiting N N 14 RM 64543 Bradtke 2002 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-12880 Heather Bradtke 9363 25 7 2002 U.S.A. Washington Asotin Umatilla National Forest and Vicinity: Round Prairie on Smoothing Iron Ridge, ca 3 mi N and 12 W of Anatone. Prairie, sagebrush and grass dominant in brown, powdery to rocky soil. 4800 5000 ft. 46° 10' 36" N, 117° 24' 38" W; GPS Reading zone 11, 5113766E, 468311N; GPS Reading T8N R43E S10; also S15 46.176667 -117.410556 GPS Reading Flowering N N 15 RM 853865 Irwin 2012 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-154123 Joshua J. Irwin 8352 28 5 2012 U.S.A. Idaho Lemhi Northern Salmon River Mountains: near spring on a bench along Little Sheepeater Creek, 2.3 air mi WSW of Shoup. Dominant population in xeric soil within a ponderosa pine woodland, 24 degree slope, SE aspect, peraluminous granite geology. 4498 ft. T24N R18E S34 45.37018 -114.32368 NAD 83 30 m. Flowering N N 16 RM 853910 Irwin 2012 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-154135 Joshua J. Irwin 8398 2 6 2012 U.S.A. Idaho Lemhi Northern Salmon River Mountains: foot of the ridge just SSE of the confluence of McConn and Indian Creeks, 10.2 air mi NW of the town of North Fork. Dominant population in mesic soil within grassland vegetation, 24 degree slope, N aspect, quartzite geology. 4866 ft. T25N R20E S18 45.50313 -114.15338 NAD 83 30 m. Flowering N N 17 RM 856410 Irwin 2010 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-128776 Joshua J. Irwin 1071 17 6 2010 U.S.A. Idaho Lemhi Challis National Forest: Lemhi Range: Cow Creek Canyon at the confluence of the North Fork Cow Creek, 5.5 air mi NE of Ellis. Well developed soil in mesic grassland vegetation; 20° slope, N aspect; volcaniclastic geology. 5311 ft. 44.73925° N, -113.95766° W; NAD83, uncertainty 10 m., Field Notes T16N R21E S10 44.73925 -113.95766 NAD83 10 m. N N Field Notes 26-75 individuals apparent. Fruiting N N 18 RM 856631 Irwin 2010 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-129017 Joshua J. Irwin 2817 Craig Scott 26 7 2010 U.S.A. Idaho Lemhi Salmon National Forest: Lemhi Range: slopes along Alder Creek, 13.3 air mi WNW of Leadore. Well developed soil in mesic Douglas-fir vegetation; 14° slope, NNW aspect; alluvial geology. 7164 ft. 44.72488° N, -113.62172° W; NAD83, uncertainty 10 m., Field Notes T16N R24E S8 44.72488 -113.62172 NAD83 10 m. N N Field Notes 1-25 individuals apparent. Flowering and Fruiting N N 19 RM 856763 Irwin 2010 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-128703 Joshua J. Irwin 593 3 6 2010 U.S.A. Idaho Lemhi Salmon River between Challis and Salmon: lower Briney Creek, 14.7 air mi S of Salmon. Well developed soil in mesic grassland vegetation; 18° slope, NNW aspect; quartzite geology. 4507 ft. 44.96662° N, -113.94842° W; NAD83, uncertainty 10 m., Field Notes T19N R21E S23 44.96662 -113.94842 NAD83 10 m. N N Field Notes 26-75 individuals apparent. Flowering N N 20 RM 856789 Irwin 2010 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-128788 Joshua J. Irwin 1140 17 6 2010 U.S.A. Idaho Lemhi Salmon National Forest: Salmon River Mountains: ridge slopes dividing the confluence of Iron and North Fork Iron creeks, 16.2 air mi N of Ellis. Sandy or gravelly soil in mesic grassland vegetation; 12° slope, WSW aspect; siltite/metasandstone geology. 5989 ft. 44.92171° N, -114.11233° W; NAD83, uncertainty 10 m., Field Notes T18N R20E S4 44.92171 -114.11233 NAD83 10 m. N N Field Notes 26-75 individuals apparent. Flowering N N 21 RM 856986 Irwin 2010 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-128794 Joshua J. Irwin 1187 18 6 2010 U.S.A. Idaho Lemhi Salmon National Forest: Lemhi Range: foothill slopes at the base of K Mountain, just S of Kadletz Creek, 13 air mi SE of Salmon. Sandy or gravelly soil in mesic shrub-steppe vegetation; 15° slope, SSE aspect; andesitoid-rhyolitoid geology. 6289 ft. 45.02102° N, -113.74475° W; NAD83, uncertainty 10 m., Field Notes T20N R23E S33 45.02102 -113.74475 NAD83 10 m. N N Field Notes 26-75 individuals apparent. Flowering N N 22 RM 857023 Irwin 2010 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-128715 Joshua J. Irwin 667 5 6 2010 U.S.A. Idaho Lemhi Salmon National Forest: Salmon River Mountains: Trapper Flat, 14.8 air mi S of Shoup. Well developed soil in xeric woody riparian vegetation; 3° slope, WSW aspect; metamorphosed sedimentary geology. 4387 ft. 45.16174° N, -114.28442° W; NAD83, uncertainty 10 m., Field Notes T21N R18E S12 45.16174 -114.28442 NAD83 10 m. N N Field Notes 76-150 individuals apparent. Flowering N N 23 RM 857048 Irwin 2010 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-128665 Joshua J. Irwin 332 29 5 2010 U.S.A. Idaho Lemhi Salmon National Forest: Foothills between Salmon and North Fork: Wallace Creek just E of Diamond Creek Road, 6.2 air mi N of Salmon. Well developed soil in mesic grassland vegetation; 28° slope, N aspect; tuffaceous clastic geology. 4247 ft. 45.26482° N, -113.9179° W; NAD83, uncertainty 10 m., Field Notes T22N R21E S1 45.26482 -113.9179 NAD83 10 m. N N Field Notes 1-25 individuals apparent. Flowering N N 24 RM 857069 Irwin 2010 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-128658 Joshua J. Irwin 280 21 5 2010 U.S.A. Idaho Lemhi Salmon National Forest: Salmon River Mountains: foothill slopes on the west side of Panther Creek ca 0.3 mi upstream of Trail Creek, 9.1 air mi SSW of Shoup. Well developed soil in mesic grassland vegetation; 27° slope, ENE aspect; granite geology. 3698 ft. 45.24712° N, -114.31962° W; NAD83, uncertainty 10 m., Field Notes T22N R18E S11 45.24712 -114.31962 NAD83 10 m. N N Field Notes 26-75 individuals apparent. Flowering N N 25 RM 857156 Irwin 2010 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-128648 Joshua J. Irwin 202 21 5 2010 U.S.A. Idaho Lemhi Salmon National Forest: Salmon River Gorge: between Panther and Cove creeks, 8 air mi WSW of Shoup. Sandy or gravelly soil in mesic grassland vegetation; 10° slope, NNE aspect; arenite geology. 3183 ft. 45.32194° N, -114.42194° W; NAD83, uncertainty 10 m., Field Notes T23N R17E S13 45.32194 -114.42194 NAD83 10 m. N N Field Notes 26-75 individuals apparent. Flowering N N 26 RM 857294 Irwin 2010 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-128635 Joshua J. Irwin 107 17 5 2010 U.S.A. Idaho Lemhi Salmon National Forest: Salmon River Gorge: ridge slopes on the east side of lower Cove Creek, 7.6 air mi WSW of Shoup. 15° slope, S aspect; biotite gneiss geology. 4252 ft. 45.33167° N, -114.42° W; NAD83, uncertainty 10 m., Field Notes T23N R17E S12 45.33167 -114.42 NAD83 10 m. N N Field Notes Flowering N N 27 RM 857421 Irwin 2010 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-128683 Joshua J. Irwin 526 30 5 2010 U.S.A. Idaho Lemhi Salmon National Forest: Salmon River Gorge: Big Sheepeater Creek confluence, 3.7 air mi SW of Shoup. Well developed soil in xeric ponderosa vegetation; 23° slope, E aspect; granite geology. 3293 ft. 45.34199° N, -114.33692° W; NAD83, uncertainty 10 m., Field Notes T23N R18E S10 45.34199 -114.33692 NAD83 10 m. N N Field Notes 26-75 individuals apparent. Flowering N N 28 RM 857515 Irwin 2010 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-128678 Joshua J. Irwin 442 30 5 2010 U.S.A. Idaho Lemhi Salmon National Forest: Salmon River Gorge: ridge dividing lower Ebenezer and lower Colson creeks, 12.9 air mi WSW of Shoup. Well developed soil in xeric grassland vegetation; 10° slope, WSW aspect; biotite gneiss geology. 3953 ft. 45.30797° N, -114.52544° W; NAD83, uncertainty 10 m., Field Notes T23N R17E S19 45.30797 -114.52544 NAD83 10 m. N N Field Notes 76-150 individuals apparent. Flowering N N 29 RM 857561 Irwin 2010 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-128717 Joshua J. Irwin 690 6 6 2010 U.S.A. Idaho Lemhi Salmon National Forest: Salmon River Mountains: foothill slopes N of East Fork Owl Creek near Point 4962, 8.2 air mi W of Shoup. Well developed soil in mesic grassland vegetation; 18° slope, SSW aspect; granite geology. 5161 ft. 45.36345° N, -114.44503° W; NAD83, uncertainty 10 m., Field Notes T24N R17E S35 45.36345 -114.44503 NAD83 10 m. N N Field Notes 26-75 individuals apparent. Flowering N N 30 RM 857763 Irwin 2010 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-128741 Joshua J. Irwin 847 Wendy Irwin 10 6 2010 U.S.A. Idaho Lemhi Salmon National Forest: Salmon River Gorge: ridgetop above the south side of Sage Creek, 5.6 air mi W of North Fork. Well developed soil in mesic grassland vegetation; 23° slope, SE aspect; granite geology. 4671 ft. 45.39561° N, -114.10718° W; NAD83, uncertainty 10 m., Field Notes T24N R20E S21 45.39561 -114.10718 NAD83 10 m. N N Field Notes 26-75 individuals apparent. Flowering N N 31 RM 857803 Irwin 2010 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-128688 Joshua J. Irwin 487 31 5 2010 U.S.A. Idaho Lemhi Salmon National Forest: Salmon River Gorge: Eagles Nest, 1.1 air mi SSW of Shoup. Well developed soil in mesic mountain mahogany vegetation; 27° slope, ENE aspect; granite geology. 4776 ft. 45.36237° N, -114.28837° W; NAD83, uncertainty 10 m., Field Notes T24N R18E S36 45.36237 -114.28837 NAD83 10 m. N N Field Notes 26-75 individuals apparent. Flowering N N 32 RM 857842 Irwin 2010 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-128677 Joshua J. Irwin 427 29 5 2010 U.S.A. Idaho Lemhi Salmon National Forest: Salmon River Gorge: ridgetop on the north side of the Bear Basin Creek confluence, 18.8 air mi W of Shoup. Well developed soil in mesic mountain mahogany vegetation; 32° slope, NNW aspect; phyllite geology. 4060 ft. 45.33994° N, -114.65946° W; NAD83, uncertainty 10 m., Field Notes T23N R15E S13 45.33994 -114.65946 NAD83 10 m. N N Field Notes 76-150 individuals apparent. Flowering N N 33 RM 862765 Irwin 2010 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-133448 Ronald L. Hartman 89686 22 5 2010 U.S.A. Idaho Lemhi Salmon National Forest: Bitterroot Range: Forest Road 30 along Salmon River, then NW 1.3 air mi along Squaw Creek, 0.7-1.2 air mi NW of Indianola Forest Service Station. Grassy slopes, open or under ponderosa pine. 3701 4603 ft. 45.4125° N, 114.1825° W to 45.4034° N, 114.1794° W; NAD 83, , GPS reading T4S R23E S13 45.4034 -114.1794 NAD 83 GPS reading Flowering N N 34 RM 862852 Irwin 2010 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-133450 Ronald L. Hartman 89778 Joshua J. Irwin 23 5 2010 U.S.A. Idaho Lemhi Salmon National Forest: Salmon River Mountains: Jesse Creek Forest Service Facility and along Jesse Creek, ca 2-3 air mi W of Salmon at the intersection of Ida Hwy 28 and U.S. Hwy 93. Grassy slope and hills on south and east exposures and along creek. 4460 5410 ft. 45.1806° N, 113.9338° W to 45.1826° N, 113.951° W; NAD 83, , GPS reading T21N R21E S2; also S3 45.1806 -113.9338 NAD 83 GPS reading Flowering N N 35 RM 862875 Irwin 2010 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-133451 Ronald L. Hartman 89800 Joshua J. Irwin 25 5 2010 U.S.A. Idaho Lemhi Salmon River Mountains: 2.5 mi W of Shoup Bridge, 6.5 mi SSW of the intersection of Ida Hwy 28 and U.S. Hwy 93 in Salmon. Steep slope to rock outcrop then rolling hills with grasses and sagebrush. 3980 5172 ft. 45.0817° N, 113.9437° W to 45.0903° N, 113.9408° W to 45.0895° N, 113.9524° W to 45.0817° N, 113.9437° W; NAD 83, , GPS reading T20N R21E S2 South1/2; also NW1/4 S11 45.0817 -113.9437 NAD 83 GPS reading Flowering N N 36 RM 863009 Irwin 2010 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-133454 Ronald L. Hartman 89945 Joshua J. Irwin 26 5 2010 U.S.A. Idaho Lemhi Salmon River Gorge: Kriley Creek, ca 12.5 air mi N of Salmon. Valley bottom and adjacent steep northwest exposure. 3800 4000 ft. 45.3554° N, 113.9245° W to 45.3574° N, 113.9168° W; NAD 83, , GPS reading T5S R19W S1 NE1/4 45.3554 -113.9245 NAD 83 GPS reading Flowering N N 37 RM 863075 Irwin 2010 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-133455 Ronald L. Hartman 90015 Joshua J. Irwin 26 5 2010 U.S.A. Idaho Lemhi Bitterroot Range: Badger Spring Gulch from the edge of Big Flat, ca 8 air mi N of Salmon. Breaks with loose sediments of sand and clay, sagebrush grasslands below to scattered ponderosa pine above. 3890 4265 ft. 45.2871° N, 113.8742° W to 45.2965° N, 113.8631° W; NAD 83, , GPS reading T6S R18W S28; also N1/2 S33 45.2871 -113.8742 NAD 83 GPS reading Flowering N N 38 RM 863107 Irwin 2010 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-133456 Ronald L. Hartman 90046 25 7 2010 U.S.A. Idaho Lemhi Beaverhead Mountains: above Pattee Creek on Forest Road 185, 7.5 air mi NE of Tendoy and 0.3 road mi downhill from the National Forest boundary. Tall forb community on slope with scattered Douglas fir, little different on ridge. 7247 ft. 45.0386° N, 113.5527° W; NAD 83, , GPS reading T20N R25E S25 NE1/4 NE1/4 45.0386 -113.5527 NAD 83 GPS reading Fruiting N N 39 RM 863698 Irwin 2010 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-133471 Ronald L. Hartman 90667 30 7 2010 U.S.A. Idaho Lemhi Salmon National Forest: Bitterroot Range: Salmon Ridge dividing Spring and East Fork Spring creeks on Spring Creek Road (Forest Road 038). Cut-over ridge and rock outcrop. 6456 ft. 45.439° N, 114.2869° W; NAD 83, , GPS reading T24N R18E S1 E1/4 45.439 -114.2869 NAD 83 GPS reading Fruiting N N 40 RM 865096 Irwin 2011 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-155129 Ronald L. Hartman 91175 Emma E. Stewart 7 6 2011 U.S.A. Idaho Butte South end of Arco Hills, ca 6.5-7 air mi ESE of Arco. Juniperus osteosperma and sagebrush below and up to saddle. 5296 5560 ft. 43° 37.199' N, 113° 9.631' W to 43° 37.118' N, 113° 10.241' W; NAD 83, , GPS reading T3N R28E S6 N1/2 43.619983 -113.160517 NAD 83 GPS reading Flowering N 41 RM 865444 Irwin 2011 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus 1. Zigadenus venenosus S. Watson var. venenosus
Annotated by Joshua J. Irwin. RM-155164 Ronald L. Hartman 91526 Emma E. Stewart 13 6 2011 U.S.A. Idaho Lemhi Northern Salmon River Mountains: Salmon Wild and Scenic River: Salmon River Trail from ca 1 mi E to Horse Creek. Trail with steep boulder field on either side, shrubs scattered along river. 2850 2900 ft. 45° 23.704' N, 114° 42.923' W to 45° 23.781' N, 114° 43.915' W; NAD 83, , GPS reading T24N R14E S27 N1/2 45.395067 -114.715383 NAD 83 GPS reading Fruiting N 42 RM 881741 Irwin 2010 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus 1. Zigadenus venenosus S. Watson var. venenosus
Annotated by Joshua J. Irwin. RM-133467 Ronald L. Hartman 90482 27 7 2010 U.S.A. Idaho Lemhi Salmon National Forest: Lemhi Range: Hayden Creek Road to Mill Creek (Forest Road 010), between Apple and Little Sawmill creeks, ca 16 air mi W of Leadore. Dry ridge and rock outcrop. 7800 ft. 44.7677° N, 113.6607° W; NAD 83, , GPS reading T17N R23E S25 SE1/4 SE1/4 44.7677 -113.6607 NAD 83 GPS reading Fruiting 43 RM 882209 Irwin 2011 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-153686 Joshua J. Irwin 4654 1 6 2011 U.S.A Idaho Lemhi Salmon National Forest: Northern Salmon River Mountains: Stoddard Creek 1/4 mi upstream of the Middle Fork Salmon River, 21.4 air mi WSW of Shoup. In mesic coarse textured soil within grassland vegetation, 16 degree slope, SSW aspect, gneiss geology. 3336 ft. T22N R15E S24 45.23879 -114.67089 NAD 83 30 m. Flowering N N 44 RM 882210 Irwin 2011 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-153703 Joshua J. Irwin 4757 7 6 2011 U.S.A Idaho Lemhi Salmon National Forest: Northern Salmon River Mountains: ridgetop dividing lower Wheat and Corn creeks, 19.5 air mi W of Shoup. In mesic soil within grassland vegetation, 21 degree slope, west aspect, gneiss geology. 4103 ft. T24N R14E S36 45.37608 -114.67799 NAD 83 30 m. Flowering and Fruiting N N 45 RM 882211 Irwin 2011 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-153731 Joshua J. Irwin 5014 14 6 2011 U.S.A Idaho Custer Challis National Forest: Eastern Salmon River Mountains: hillside above lower Lick Creek, 15.4 air mi NNW of Challis. In mesic soil within grassland vegetation, 19 degree slope, NE aspect, rhyodacite geology. 6208 ft. T16N R18E S12 44.72493 -114.28249 NAD 83 30 m. Flowering N N 46 RM 882212 Irwin 2011 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-153741 Joshua J. Irwin 5094 15 6 2011 U.S.A Idaho Lemhi Salmon National Forest: Lemhi Range: McKim Creek just above the confluence with North Fork McKim Creek, 24.7 air mi NNE of Challis. In mesic soil within grassland vegetation, 30 degree slope, NNE aspect, rhyodacite geology. 5571 ft. T17N R21E S15 44.80792 -113.96072 NAD 83 30 m. Flowering N N 47 RM 882213 Irwin 2011 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-153797 Joshua J. Irwin 5490 24 6 2011 U.S.A Idaho Custer Challis National Forest: Pahsimeroi Mountains: upper Gerry Gulch, NW of Point 7686, 8.1 air mi NE of Challis. In xeric soil within a Douglas-fir vegetation, 14 degree slope, W aspect, trachyandesite geology. 6666 ft. T15N R20E S32 44.59341 -114.12062 NAD 83 30 m. Flowering N N 48 RM 882214 Irwin 2011 RM Melanthiaceae Zigadenus venenosus S. Watson var. venenosus RM-153878 Joshua J. Irwin 6182 13 7 2011 U.S.A Idaho Lemhi Salmon National Forest: Lemhi Range: ridge dividing North and Middle Fork Little Timber creeks, due N of Stone Reservoir, 8.5 air mi SW of Leadore. In mesic soil within shrub-steppe vegetation, 13 degree slope, ESE aspect, dolostone (dolomite) geology. 8024 ft. T15N R25E S34 44.58693 -113.47034 NAD 83 30 m. Flowering N N