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RM 720292 Cirsium clavatum physical specimen Asteraceae Cirsium clavatum (M. E. Jones) Petr. 4378 Kevin J. Taylor 1997 8 8 220 U.S.A. Colorado Gunnison Northern Gunnison Basin: on Snodgrass Mountain, ca 2 air mi SSE of Gothic. -106.9712 38.92 2987 3109 Aspen forest, open meadow, and along ponds, creeks, and seeps. Phenology: flowering & fruiting. RM 720291 Cirsium clavatum physical specimen Asteraceae Cirsium clavatum (M. E. Jones) Petr. 4582 Kevin J. Taylor 1997 8 15 227 U.S.A. Colorado Gunnison Northern Gunnison Basin: ca 4 air mi NE of Pitkin. -106.4787 38.648 3079 3155 Lodgepole pine, Engelmann spruce forest; common juniper and Vaccinium. Phenology: flowering & fruiting. RM RM 765221 Cirsium clavatum physical specimen Asteraceae Cirsium clavatum (M. E. Jones) Petr. 4400 Sarah Nunn 2001 8 9 221 U.S.A. Colorado Larimer Roosevelt National Forest: Front Range:Comanche Peak Wilderness: Cache la Poudre River on Big South Trail off Colo Hwy 14, ca 34 air mi W of Fort Collins. -105.8009 40.6257 1 2621 2682 Douglas fir and aspen canopy along river with Arctostaphylos and some rock piles and overhangs. Phenology: flowering. RM RM 241732 Cirsium clavatum physical specimen Asteraceae Cirsium clavatum (M. E. Jones) Petr. 6537 C. L. Porter 1954 7 14 195 U.S.A. Colorado Mesa Grand Mesa: Mesa Lakes. 2926 Open aspen and spruce-fir forest. Phenology: fruiting. RM RM 475961 Cirsium clavatum physical specimen Asteraceae Cirsium clavatum (M. E. Jones) Petr. 262 E. R. Ware 1932 7 15 197 U.S.A. Colorado Garfield White River National Forest: 2 mi N of West Ranger Station. -107.6632 39.6878 1 2256 40 degree east slope, sandy loam, woodland; with Cornus, Symphorocarpus and Polemonium. Phenology: flowering & fruiting. RM RM 161070 Cirsium clavatum physical specimen Asteraceae Cirsium clavatum (M. E. Jones) Petr. 3004 George E. Osterhout 1905 7 12 193 U.S.A. Colorado Grand Coulter Post Office. Phenology: flowering. RM RM 51494 Cirsium clavatum physical specimen Asteraceae Cirsium clavatum (M. E. Jones) Petr. 3004 George E. Osterhout 1905 7 12 193 U.S.A. Colorado Grand Middle Park: Coulter Post Office. -105.9428 40.0355 2 Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 62635 B. E. Nelson 2004 8 15 228 U.S.A. Colorado Archuleta Eastern San Juan Mountains: northeast end of Mesa Cortado, S of U.S. Hwy 84, ca 17.5-18 air mi SE of Pagosa Springs. -106.8505 37.0727 2378 2530 Aspen meadow at the head of a drainage. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 1190 Erin Foley Michael Foley 2003 6 22 173 U.S.A. Colorado Clear Creek Arapaho National Forest: Front Range: West Fork Clear Creek at Mizpah Campground, ca 12 air mi S of Fraser; ca 14 air mi WNW of Idaho Springs. -105.7923 39.7762 2865 2926 Along creek and in spruce forest. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2105 Erin Foley 2003 7 10 191 U.S.A. Colorado Grand Arapaho National Forest: Front Range: Vasquez Creek, ca 3 air mi SSE of Fraser, ca 6.5 air mi NNW of Berthoud Pass. -105.8046 39.9015 1 2743 Along creek, in spruce forest, and roadside. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2569 Erin Foley 2003 7 17 198 U.S.A. Colorado Grand Arapaho National Forest: Williams Fork Mountains: intermittent stream between Henderson Tunnel and Williams Fork, ca 6 air mi SW of Byers Peak, ca 13.5 air mi SW of Winter Park. -105.9991 39.7838 1 2743 3091 Along stream and river in spruce/lodgepole pine forest. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2919 Erin Foley 2003 7 19 200 U.S.A. Colorado Grand Arapaho National Forest: Front Range: Meadow Creek Road, ca 28 air mi W of Boulder; ca 5.5 air mi N of Fraser. -105.8071 40.0224 2743 Open aspen/lodgepole pine forest. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3113 Erin Foley 2003 7 21 202 U.S.A. Colorado Grand Arapaho National Forest: Front Range: S of Lake Granby along Doe Creek, ca 6.5 air mi ENE of Granby; ca 15.5 air mi NNW of Fraser. -105.8289 40.1098 2585 2670 Along creek and in open meadow. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3137 Erin Foley 2003 7 21 202 U.S.A. Colorado Grand Arapaho National Forest: Front Range: Monarch Lake, ca 10.5 air mi E of Granby; ca 12 air mi NE of Fraser. -105.7415 40.108 1 2560 Lakeside, spruce/lodgepole pine/fir forest, and streamside. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3282 Erin Foley 2003 7 23 204 U.S.A. Colorado Boulder Roosevelt National Forest: Front Range: Indian Peaks Wilderness: Saint Vrain Mountain Trail, ca 18 air mi NW of Boulder; ca 7 air mi NW of Ward. -105.5588 40.1695 1 2926 3384 Lodgepole pine/spruce forest, subalpine, and streamside. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3341 Erin Foley 2003 7 23 204 U.S.A. Colorado Boulder Roosevelt National Forest: Front Range: Indian Peaks Wilderness: Rainbow Lakes, ca 3.5-4 air mi NW of Nederland; ca 12.5 air mi NE of Fraser. -105.5828 40.0132 3109 Lakeside and moist spruce/lodgepole pine/fir forest. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3585 Erin Foley 2003 7 27 208 U.S.A. Colorado Grand Arapaho National Forest: Front Range: Kawuneeche Road, South Supply Creek, ca 3.5 air mi WNW of Grand Lake. -105.894 40.2617 2743 Along creek, wet meadow, and regenerating lodgepole pine forest. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3969 Erin Foley 2003 7 31 212 U.S.A. Colorado Grand Arapaho National Forest: Front Range: Indian Peaks Wilderness: Cascade Creek Trail, along Buchanan Creek, ca 1 mi E of Monarch Lake. -105.7066 40.1105 2682 Dry slopes. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4261 Erin Foley Jill Torres 2003 8 4 216 U.S.A. Colorado Grand Arapaho National Forest: Front Range: Byers Peak Wilderness: Lake Evelyn Trail, ca 9.5 air mi WSW of Fraser. -105.9722 39.8862 2987 3353 Along trail through mixed coniferous forest with intermittent streams and meadows. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4635 Erin Foley 2003 8 10 222 U.S.A. Colorado Gilpin Arapaho National Forest: Front Range, tributary of North Clear Creek, ca 4 air mi WNW of Central City; ca 6.5 air mi NE of Empire. -105.585 39.822 2987 Along small stream through spruce forest and cleared meadows. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4888 Erin Foley 2003 8 14 226 U.S.A. Colorado Grand Arapaho National Forest: Williams Fork Mountains: Skylark Creek, ca 1.5 mi W of Mule Creek, ca 13.5 air mi SSW of Hot Sulphur Springs. -106.186 39.885 2707 2926 Spruce/fir forest. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5130 Erin Foley 2003 8 16 228 U.S.A. Colorado Grand Arapaho National Forest: Front Range: Never Summer Wilderness: Cascade Mountain, ca 10.5 air mi N of Granby. -105.9561 40.3317 2951 3506 Spruce/lodgepole pine/fir forest and clearings. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5194 Erin Foley 2003 8 16 228 U.S.A. Colorado Grand Arapaho National Forest: Rabbit Ears Range: Buffalo Creek, ca 15.5 air mi NW of Granby; ca 15 air mi NE of Parshall. -106.1141 40.262 2707 In disturbed areas and along small creek tributary. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5456 Erin Foley 2003 8 19 231 U.S.A. Colorado Grand Arapaho National Forest: Williams Fork Mountains: South Fork Williams Fork Trail, ca 24 air mi SSE of Hot Sulphur Springs; ca 9.5 air mi NW of Loveland Pass. -106.0077 39.7129 2987 Along river and adjacent spruce/fir forest. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5551 Erin Foley 2003 8 26 238 U.S.A. Colorado Grand Arapaho National Forest: Rabbit Ears Range: North Fork Cabin Creek along Cabin Creek Road, ca 3 mi W of Colo Hwy 125, ca 9 air mi N of Hot Sulphur Springs. -106.0912 40.2021 2591 Along creek and roadside. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5655 Erin Foley 2003 8 30 242 U.S.A. Colorado Grand Arapaho National Forest: Rabbit Ears Range: 0.5 mi S of Willow Creek Pass along Pass Creek, ca 28.5 air mi SE of Walden. -106.0963 40.3444 2896 2957 Along creek and in adjacent meadow and lodgepole pine forest. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 930 Erin Foley Michael Foley 2003 6 20 171 U.S.A. Colorado Grand Arapaho National Forest: Front Range: Arapaho Bay of Lake Granby, along Roaring Fork Creek, ca 9 air mi SE of Grand Lake. -105.7642 40.1295 2536 2621 Roadside and lakeside. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 10358 Erin Foley Ronald L. Hartman 2004 7 19 201 U.S.A. Colorado Grand Rabbit Ears Range: Black Mountain, ca 6 air mi NW of Parshall and ca 10.5 air mi NE of Kremmling. -106.2108 40.1454 2804 2896 Mountain slope. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 11352 Erin Foley 2004 8 10 223 U.S.A. Colorado Grand Rabbit Ears Range: Lindsey Creek to Grannys Nightcap, ca 18.5 air mi NNW of Kremmling and ca 23 air mi SE of Steamboat Springs. -106.4434 40.3252 2658 2871 Along creek. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 11420 Erin Foley 2004 8 10 223 U.S.A. Colorado Grand Rabbit Ears Range: Lindsey Creek to Grannys Nightcap, ca 18.5 air mi NNW of Kremmling and ca 23 air mi SE of Steamboat Springs. -106.4434 40.3252 2658 2871 Along creek. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 11438 Erin Foley 2004 8 12 225 U.S.A. Colorado Grand Arapaho National Forest: Vasquez Peak Wilderness: Vasquez Mountains: unnamed stream and junction with Vasquez Creek, ca 5 air mi SW of Winter Park and ca 7.5 air mi SSW of Fraser. -105.8237 39.8463 2926 3323 Along stream. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 12013 Erin Foley 2004 8 21 234 U.S.A. Colorado Grand Gore Range: off BLM Road 2750 near Dice Hill and Sheephorn Mountain, ca 5.5 air mi E of Radium and ca 9.5 air mi NW of Heeney. -106.4393 39.9474 2780 2926 Mixed conifer stand. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 12085 Erin Foley 2004 8 25 238 U.S.A. Colorado Grand Arapaho National Forest: Indian Peaks Wilderness: Front Range: Buchanan Creek, ca 15 air mi ENE of Granby and ca 9 air mi WNW of Ward. -105.6775 40.1226 2865 3109 Along Creek Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 7303 Erin Foley 2004 6 10 162 U.S.A. Colorado Grand Middle Park: just S of Hot Sulphur Springs State Wildlife Area and just N of Little Muddy, ca 3.5 air mi SSW of Hot Sulphur Springs and 11 air mi SW of Granby. -106.1089 40.0218 2439 2576 Moist aspen grove. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 8698 Erin Foley 2004 6 28 180 U.S.A. Colorado Grand Rabbit Ears Range: tributary of Willow Creek, ca 9.5 air mi NW of Granby and ca 9.5 air mi SE of Willow Creek Pass. -106.0348 40.2001 2560 2634 Moist disturbed area. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 8807 Erin Foley 2004 7 1 183 U.S.A. Colorado Grand Arapaho National Recreation Area: Willow Creek Reservoir, ca 4 air mi NW of Granby and ca 11 air mi SW of Grand Lake. -105.9565 40.1446 2500 Moist aspen stand. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 8966 Erin Foley 2004 7 1 183 U.S.A. Colorado Grand Middle Park: Parshall Divide, ca 1.5 air mi WSW of Hot Sulphur Springs and ca 2.5 air mi ENE of Parshall. -106.1315 40.0659 2512 2560 Roadside through Douglas fir. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 9220 Erin Foley 2004 7 5 187 U.S.A. Colorado Grand Arapaho National Forest: Middle Park: just S of U.S. Hwy 40, ca 4 air mi WNW of Granby and ca 5.5 air mi NE of Hot Sulphur Springs. -105.9934 40.1031 2378 2463 Lodgepole pine slope. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 9671 Erin Foley 2004 7 10 192 U.S.A. Colorado Grand Middle Park: Round Creek, ca 11.5 air mi NE of Kremmling and ca 13.8 air mi NW of Hot Sulphur Springs. -106.2801 40.1995 2646 2780 Disturbed sagebrush meadow. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 9760 Erin Foley 2004 7 12 194 U.S.A. Colorado Grand Gore Range: Inspiration Point, ca 6.5 air mi SW of Kremmling and ca 5.5 air mi NE of Radium. -106.4774 39.9968 2243 2408 Disturbed area through mixed coniferous woodland. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 9984 Erin Foley 2004 7 14 196 U.S.A. Colorado Grand Rabbit Ears Range: Troublesome Wilderness: Rabbit Ears Creek, ca 12.5 air mi SW of Rand and ca 17.5 air mi NE of Kremmling. -106.355 40.2845 2792 2865 Disturbed opening adjacent to spruce stand. Phenology: flowering & fruiting. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2822 Emily A. Holt 2000 7 28 210 U.S.A. Colorado Lake Central Colorado: Sawatch Range, East Slope Continental Divide: off Forest Road 109, ca 2.5 air mi N of Leadville. -106.302 39.2962 3292 3353 Mixed forest (Pinus contorta and Picea engelmannii). Phenology: flowering & fruiting. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3273 Emily A. Holt Brain Elliott 2000 8 6 219 U.S.A. Colorado Eagle Central Colorado: Sawatch Range, West Slope Continental Divide: below Mount Jackson, along Lake Creek Forest Service Trail 1880, ca 11 air mi S of Edwards. -106.5612 39.4841 3109 3353 Open spruce-fir forest and boulder field. Phenology: flowering & fruiting. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3336 Emily A. Holt Brian Elliott 2000 8 6 219 U.S.A. Colorado Eagle Central Colorado: Sawatch Range, West Slope Continental Divide: along East Lake Creek, ca 8 air mi SSW of Avon. -106.5612 39.5419 2926 3109 Spruce-fir forest. Phenology: flowering & fruiting. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3471 Emily A. Holt Brian Elliott 2000 8 6 219 U.S.A. Colorado Eagle Central Colorado: Sawatch Range, West Slope Continental Divide: along East Lake Creek Trail 1880, ca 5 air mi S of Edwards. -106.5612 39.5563 2500 2865 Aspen woodland. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 6970 Emily A. Holt 2001 7 18 199 U.S.A. Colorado Eagle Central Colorado: Sawatch Range, West Slope Continental Divide: along Reudi Trail at west end of reservoir, to second powerline crossing from trailhead, ca 11.5 air mi E of Basalt. -106.8133 39.3724 2439 2621 Dense aspen woodland with interspersed lodgepole. Phenology: flowering. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 7873 Emily A. Holt 2001 8 14 226 U.S.A. Colorado Eagle Central Colorado: Gore Range, West Slope Continental Divide: along Gore Creek Trail 2015, from Wilderness sign E ca 2.5 mi, ca 7 air mi E of Vail. -106.2589 39.6312 2743 3048 Mixed forest with aspen, lodgepole, spruce-fir and Douglas Fir. Phenology: flowering & fruiting. RM RM 570089 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 17362 B. E. Nelson Steven Nelson 1989 7 31 212 U.S.A. Colorado Routt Sierra Madre\Park Range: Park Range: Routt National Forest: ca 2 air mi SSE of Lynx Pass on Morrison Creek Road, ca 13 air mi ESE of Yampa; ca 29 air mi SSE of Steamboat Springs. -106.6674 40.0833 2 2682 2804 Moist swale in lodgepole pine-aspen forest. RM RM 570090 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 17444 B. E. Nelson Steven Nelson 1989 8 1 213 U.S.A. Colorado Routt Sierra Madre\Park Range: Park Range: Routt National Forest: Lone Spring Butte, ca 5.5 air mi ESE of Yampa, ca 24 air mi SSE of Steamboat Springs. -106.8205 40.1275 3109 In opening in mostly subalpine fir forest. RM RM 570077 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 17540 B. E. Nelson Steven Nelson 1989 8 1 213 U.S.A. Colorado Routt Sierra Madre\Park Range: Park Range: Routt National Forest: N of head of Newcomer Creek, ca 7 air mi SE of Yampa, ca 27 air mi S of Steamboat Springs. -106.8014 40.098 2743 Aspen grove. RM RM 570078 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 17619 B. E. Nelson Steven Nelson 1989 8 3 215 U.S.A. Colorado Routt Sierra Madre\Park Range: Park Range: Routt National Forest: Along Service Creek ca 3 air mi above the Yampa River, ca 15 air mi SSE of Steamboat Springs. -106.7631 40.2748 2408 2530 Aspen forest bracken understory. Approaching var. clavatum Phenology: flowering & fruiting. RM RM 570080 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 17796 B. E. Nelson Michelle Nelson 1989 8 6 218 U.S.A. Colorado Routt [location and coordinates withheld] 2317 Aspen-oak woods. RM RM 570079 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 18097 B. E. Nelson Michelle Nelson 1989 8 10 222 U.S.A. Colorado Routt Sierra Madre\Park Range: Park Range: Routt National Forest: Above Volcano Siding ca 2 air mi SW of Long Park, ca 13.5 air mi SE of Yampa, ca 33 air mi S of Steamboat Springs. -106.7248 40.0096 2682 2743 Brushy aspen woods. RM RM 570082 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 1294 Nancy Kastning 1988 8 16 229 U.S.A. Colorado Jackson Sierra Madre\Park Range: Park Range: ca 2 air mi N of Red Elephant Mountain. -106.6288 40.9229 2774 2865 Dry open areas under lodgepole pine and spruce. Approaching var. clavatum Phenology: flowering & fruiting. RM RM 570081 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 1308 Nancy Kastning Sunny and Joel Kastning 1988 8 18 231 U.S.A. Colorado Jackson Sierra Madre\Park Range: Park Range: ca 6.5 air mi SSE of Mount Ethel. 2667 Aspen forests. RM RM 570083 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2538 Nancy Kastning 1989 7 26 207 U.S.A. Colorado Jackson Sierra Madre\Park Range: Park Range: ca 20 air mi WSW of Walden in the Rainbow Lake area. -106.6256 40.648 2865 2987 Lodgepole pine-aspen mixed area. RM RM 570084 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4868 Neil Snow 1989 8 3 215 U.S.A. Colorado Routt Sierra Madre\Park Range: Park Range: vicinity of Mad Creek Trail, ca 7 air mi NNW of Steamboat Springs. -106.8732 40.5791 2103 2530 Edge of creek. RM RM 570085 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4924 Neil Snow 1989 8 4 216 U.S.A. Colorado Routt [location and coordinates withheld] 2743 3304 Spruce-fir-Pseudotsuga forest and adjacent meadows. RM RM 570086 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5168 Neil Snow 1989 8 4 216 U.S.A. Colorado Grand [location and coordinates withheld] 2804 Meadows and disturbed areas. RM RM 570087 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5405 Neil Snow 1989 8 6 218 U.S.A. Colorado Jackson Sierra Madre\Park Range: Park Range: near junction of Forest Roads 600 and 689, ca 0.5 mi N of Big Creek Lake, ca 22 air mi NW of Walden; along South Fork Big Creek. -106.6098 40.9374 2713 Forest near creek. RM RM 570088 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5434 Neil Snow 1989 8 6 218 U.S.A. Colorado Jackson Sierra Madre\Park Range: Park Range: along Forest Road 600, ca 25 air mi NW of Walden. -106.5717 40.9665 2743 Roadside. RM RM 569631 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 16153 B. E. Nelson 1988 6 30 182 U.S.A. Wyoming Carbon Sierra Madre/Park Range: Sierra Madre: along tributary of North Fork Big Creek SSE of Bear Mountain, ca 13.5 air mi SE of Encampment. -106.6342 41.0519 2682 Stony sagebrush slope in lodgepole pine forest. Phenology: flowering & fruiting. RM RM 569628 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 1015 Nancy Kastning David Culp 1988 8 6 219 U.S.A. Wyoming Carbon Sierra Madre/Park Range: Sierra Madre: ca 9 mi NNW of Blackhall Mountain, along the Encampment River. -106.7867 41.1248 2 2439 2500 Fir-pine. Phenology: flowering. RM RM 569629 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 1115 Nancy Kastning 1988 8 13 226 U.S.A. Wyoming Carbon Sierra Madre/Park Range: Sierra Madre: Singer Peak. -107.1844 41.2 2 2621 Dry open areas in aspen, lodgepole. Phenology: flowering. RM RM 569625 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 255 Nancy Kastning Lee Huston and Sunny Kastning 1988 6 28 180 U.S.A. Wyoming Carbon Sierra Madre/Park Range: Sierra Madre: ca 8 air mi SSE of Miller Hill. -107.2714 41.4034 1 2332 Ridgesides with sagebrush and mountain mahogany grading to scrub aspen. Phenology: flowering. RM RM 569626 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 502 Nancy Kastning Lee Huston and Joel Kastning 1988 7 12 194 U.S.A. Wyoming Carbon Sierra Madre/Park Range: Sierra Madre: ca 3 air mi ENE of Battle Mountain, E of Battle Creek. -107.2213 41.055 2 2179 Sagebrush-grassland slopes east of Battle Creek. Phenology: flowering. RM RM 569627 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 942 Nancy Kastning Lee Huston and Heather Kastning 1988 7 28 210 U.S.A. Wyoming Carbon Sierra Madre/Park Range: Sierra Madre: ca 9 mi SE of Red Mountain. -106.8249 41.0817 2 2682 2865 Old clear cut in lodgepole pine forest, disturbed. Phenology: flowering. RM RM Cirsium clavatum var. americanum × Cirsium canescens physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 69038 Ronald L. Hartman Sarah Nunn 2000 7 27 209 U.S.A. Colorado Larimer North-central Colorado: Slough Creek 0.5-1 air mi NW of Hohnholz Lake #3. -106.0194 40.9374 2423 2454 Badlands on side of ridge and into stream bottom, seasonal. Phenology: flowering. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 7709 Margarette J. Lyon 1994 8 22 234 U.S.A. Colorado San Miguel San Miguel and Lower Dolores River Drainages: at seep crossing Last Dollar Road, ca 0.3 mi SW of Whipple Mountain Trailhead. -107.9393 38.0169 3170 Hillside. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2354 Amy J. Roderick 1997 7 14 195 U.S.A. Wyoming Carbon Upper North Platte and Laramie River Drainages: hillside between Sage Creek and County Road 401, ca 22 air mi S of Rawlins; ca 19 air mi W of Saratoga. -107.1949 41.4613 2195 Snow catch on north facing slope; black sandy soil with patches of aspen trees and flowering shrubs. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3051 Melanie Arnett 1998 8 14 226 U.S.A. Colorado Saguache Southern Gunnison Basin: San Juan Mountains: ca 4 air mi N of Sawtooth Mountain; ca 9.2 air mi W of Razor Creek Dome; ca 15 air mi S of Gunnison in Soldiers Park. -106.8815 38.3316 2957 3018 Aspen grove with occasional fir and pine. Phenology: flowering & fruiting. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3800 Lynn Marie Moore 1994 8 7 219 U.S.A. Colorado Dolores Upper Dolores River Drainage and Adjacent Areas: San Juan National Forest: Black Mesa, Forest Road 533 and Forest Road 611, ca 27 air mi NNE of Dolores. -108.196 37.8139 3231 3262 Montane meadow with scattered spruce-fir and drainage along road. West to southwest facing. Phenology: flowering & fruiting. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 8264 Lynn Marie Moore Sierra Smith 1995 8 1 213 U.S.A. Colorado Dolores Upper Dolores River Drainage and Adjacent Areas: San Juan National Forest: ca 5 air mi NW of Rico along Geyser Creek Trail, Forest Trail 648. -108.1139 37.7571 2621 2804 Aspen, spruce, snowberry, larkspur, and riparian area along creek and natural geyser, northwest face. Phenology: flowering. RM RM 765218 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2873 Sarah Nunn 2001 7 16 197 U.S.A. Colorado Larimer Roosevelt National Forest: Front Range: from Rawah Trailhead on Laramie River Road (County Road 103), west and south facing slopes of Middle Mountain, ca 40 air mi W of Fort Collins. -105.867 40.7632 1 2682 2743 Aspen groves on upper slopes and the sides of horse trails. Phenology: flowering. RM RM 765220 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3302 Sarah Nunn 2001 7 24 205 U.S.A. Colorado Larimer Roosevelt National Forest: Medicine Bow Mountains: Forest Road 200, 1 mi S of Boswell Creek Campground, ca 61 air mi NW of Fort Collins. -106.1422 40.9873 1 2652 2682 Limber pine and Artemisia steppe, dry and heavily grazed. Phenology: flowering. RM RM 253760 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 7381 C. L. Porter 1957 8 2 214 U.S.A. Wyoming Albany Medicine Bow Range: on North Fork Road. -106.183 41.374 1 2926 Roadside in lodgepole pine and spruce-fir zone. Flowers white. Phenology: flowering & fruiting. RM RM 719019 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 39 Leila Stanfield 1991 7 27 208 U.S.A. Wyoming Carbon Medicine Bow Mountains: Rock Creek Roadless Area, ca 25 air mi NW of Laramie. -106.1654 41.4865 2972 Wetlands and marshes; common adjacent to Pinus contorta and Picea engelmannii-Abies lasiocarpa. RM RM 719020 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 40 Leila Stanfield 1991 7 27 208 U.S.A. Wyoming Carbon Medicine Bow Mountains: Rock Creek Roadless Area, ca 25 air mi NW of Laramie. -106.1654 41.4865 2972 Wetlands and marshes; common adjacent to Pinus contorta and Picea engelmannii-Abies lasiocarpa. Phenology: flowering & fruiting. RM RM 703319 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 19730 Walter Fertig 2001 7 17 198 U.S.A. Wyoming Albany Laramie Range: ridge on divide between Middle Branch Middle Lodgepole Creek and South Lodgepole Creek, ca 1.5 mi N of Wyo Hwy 210 (Happy Jack Road), 1.3 mi SW of Eagle Rock and 9 mi E of Laramie. -105.3932 41.1818 2567 Base of Sheman Granite knob on thin, clayey soil with surface of granite pea gravel in opening in Pinus flexilis woods with understory of scattered Purshia tridentata, Senecio fendleri, Leucopoa kingii, and Sedum lanceolatum. Phenology: flowering. RM RM 756312 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 50027 B. E. Nelson 2000 6 28 180 U.S.A. Colorado Jackson North-central Colorado: Medicine Bow Mountains: along South Fork Canadian River ca 1/4 - 1/2 mi S of the confluence, ca 6 air mi N of Gould; ca 16 air mi SE of Walden. -106.0176 40.6189 1 2621 2652 Aspen slopes. Phenology: flowering. RM RM 756311 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 50371 B. E. Nelson 2000 7 6 188 U.S.A. Colorado Jackson North-central Colorado: Never Summer Mountains: along the Illinois River at the junction of Forest Roads 750 and 765, ca 8.5 air mi S of Gould; ca 26 air mi SE of Walden. -106.0365 40.4017 2774 Meadows among aspen groves in the river bottom. Phenology: flowering. RM RM 756310 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 51855 B. E. Nelson 2000 8 15 228 U.S.A. Colorado Moffat North-central Colorado: Elkhead Mountains: Sand Point above the head of Fourmile Creek, ca 7.5 air mi E of Fortification; ca 22.5 air mi NNE of Craig. -107.4224 40.8235 1 2865 3040 Open areas in spruce-fir-aspen forest. Phenology: flowering & fruiting. RM RM 756309 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 67988 Ronald L. Hartman 2000 7 10 192 U.S.A. Colorado Routt North-central Colorado: Elkhead Mountains: 4 wheel drive road near Meaden Mountain, 10-12 air mi NW of Clark. -107.1007 40.7804 2652 2804 Lodgepole pine and aspen woodlands. Phenology: flowering. RM RM 756308 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 68093 Ronald L. Hartman 2000 7 11 193 U.S.A. Colorado Routt North-central Colorado: Elkhead Mountains: trail to Sand Mountain, ca 5-8 air mi NW of Clark. -106.9872 40.7516 2530 3048 Aspen and conifer forests. Phenology: flowering. RM RM 756307 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 68480 Ronald L. Hartman Sarah Nunn 2000 7 20 202 U.S.A. Colorado Jackson North-central Colorado: Medicine Bow Mountains: Colorado State Forest: ca 4 air mi NE of Gould. -105.9608 40.5899 1 2865 2896 Logging road bordered by lodgepole pine, aspen, and alder. Phenology: flowering. RM RM 756306 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 68652 Ronald L. Hartman Sarah Nunn 2000 7 23 205 U.S.A. Colorado Moffat North-central Colorado: Elkhead Mountains: trail to Black Mountain, ca 20 air mi NE of Craig. -107.3467 40.766 2957 3048 Spruce-fir forest. Phenology: flowering. RM RM 756305 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 68713 Ronald L. Hartman Sarah Nunn 2000 7 23 205 U.S.A. Colorado Carbon Sierra Madre: Medicine Bow National Forest: Big Creek Park on road from Pearl Colorado, 2.5 road mi from Colorado. -106.5995 41.0246 1 2570 Spruce-fir forest and rocky slopes. Phenology: flowering. RM RM 756304 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 68891 Ronald L. Hartman Sarah Nunn 2000 7 27 209 U.S.A. Colorado Jackson North-central Colorado: Park Range: N-S trail just off Fryingpan Trail, 4-5 air mi S of Big Creek Lakes, ca 18 air mi NW of Walden. -106.5741 40.8502 2652 Forested edge. Phenology: flowering. RM RM 756299 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 69351 Ronald L. Hartman 2000 7 31 213 U.S.A. Colorado Jackson North-central Colorado: Medicine Bow Mountains: Jack Creek and vicinity, 0.5 air mi SW of Calamity Pass, ca 6 air mi S of Gould. -106.0176 40.4306 2774 Spruce-fir forest. Phenology: flowering. RM RM 756300 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 69391 Ronald L. Hartman 2000 8 7 220 U.S.A. Colorado Jackson North-central Colorado: Park Range: Rainbow Lake Trail, ca 17 air mi WSW of Walden. -106.5858 40.6479 2682 2713 Trail through spruce forest. Phenology: flowering. RM RM 756301 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 69667 Ronald L. Hartman 2000 8 8 221 U.S.A. Colorado Jackson North-central Colorado: Medicine Bow Mountains: Colorado State Forest: from peak "12184" to the south, ca 6.5 air mi NE of Gould. -105.9229 40.5755 3506 3710 Alpine rocky slope. Phenology: flowering. RM RM 756302 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 69794 Ronald L. Hartman 2000 8 11 224 U.S.A. Colorado Jackson North-central Colorado: Never Summer Mountains: Colorado State Forest: Upper Michigan Ditch, ca 7-7.5 air mi E of Gould. -105.885 40.5175 3109 Wet areas and along dirt road through spruce-fir. Phenology: flowering & fruiting. RM RM 756303 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 69882 Ronald L. Hartman 2000 8 15 228 U.S.A. Colorado Jackson North-central Colorado: Park Range: Buffalo Ridge Trail to NE of Davis Peak, ca 25-26 air mi NW of Walden. -106.7075 40.9373 3105 3332 Spruce-fir and open drainages. Phenology: flowering & fruiting. RM RM 756298 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 70017 Ronald L. Hartman 2000 8 17 230 U.S.A. Colorado Jackson North-central Colorado: Park Range: Newcomb Park Trail, 0.5-2.5 trail mi W of trail head (to granitic domes and Newcomb Creek angling NW), ca 20-21 air mi SW of Walden. -106.6426 40.5899 2682 2713 Meadows and woodland, pond edges. Phenology: flowering. RM RM 761382 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 54112 B. E. Nelson 2001 7 16 197 U.S.A. Colorado Jackson North-central Colorado: Rabbit Ears Range: along Grassy Run or Trail 1135 on the east side of Arapaho Ridge, ca 7.5-8 air mi SW of Rand; ca 23.5 air mi S of Walden. -106.2846 40.3873 1 3094 3475 Open mixed conifer forest. Phenology: flowering. RM RM 761381 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 54226 B. E. Nelson 2001 7 17 198 U.S.A. Colorado Jackson North-central Colorado: Rabbit Ears Range: ca 1 1/4 air mi S of Slack-Weiss Reservoir and ca 2 air mi WNW of the north end of Arapaho Ridge, ca 21.5 air mi S of Walden. -106.3604 40.4163 1 2780 2810 Sagebrush meadows. Phenology: flowering & fruiting. RM RM 761380 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 54282 B. E. Nelson 2001 7 17 198 U.S.A. Colorado Jackson North-central Colorado: North Park: along County Road 5, ca 1/2 - 1 1/4 mi N of Chedsey Creek, ca 7.5-8.5 air mi S of Delaney Butte, ca 17 air mi SW of Walden. -106.5499 40.5901 1 2560 2591 Rolling Artemisia - Eriogonum ridgetop. Phenology: flowering. RM RM 761379 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 54548 B. E. Nelson 2001 7 24 205 U.S.A. Colorado Routt North-central Colorado: Park Range: head of Harrison Creek, ca 2 air mi E of Walton Peak, ca 3 air mi SW of Rabbit Ears Pass; ca 13 air mi SE of Steamboat Springs. -106.6628 40.3628 1 2975 2987 Open, stony slope with occassional lodgpole pine on volcanic substrate. Phenology: flowering. RM RM 761378 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 54692 B. E. Nelson 2001 7 25 206 U.S.A. Colorado Routt North-central Colorado: Park Range: Sarvis (Sarvice) Creek Wilderness: along Silver Creek, ca 1.5 air mi S of Gore Mountain, ca 13.5-15 air mi ENE of Yampa. -106.6674 40.2011 2 2841 2963 Meadows between the willow carr and mixed conifer forest. Phenology: flowering. RM RM 761377 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 54728 B. E. Nelson 2001 7 25 206 U.S.A. Colorado Grand North-central Colorado: Park Range: along Silver Creek Trail, ca 2-3 air mi SE of Gore Mountain, ca 15-16.5 air mi NW of Kremmling. -106.622 40.2091 1 2981 3006 Along logging road in old timber sale with mixed conifer regrowth. Phenology: flowering & fruiting. RM RM 761376 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 54802 B. E. Nelson 2001 7 30 211 U.S.A. Colorado Routt North-central Colorado: Park Range: Hinman Lake and vicinity to Hinman Creek, ca 1.5 air mi N of the Elk River, ca 6.5 air mi NE of Clark; ca 20 air mi N of Steamboat Springs. -106.8354 40.7658 1 2498 2500 Aspen woodlands. Phenology: flowering. RM RM 761375 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 54939 B. E. Nelson 2001 7 31 212 U.S.A. Colorado Routt North-central Colorado: Park Range: along Middle Fork Little Snake River just N of Crane Park, ca 6.5 air mi NNE of Columbine; ca 32 air mi N of Steamboat Springs. -106.9299 40.9382 1 2518 2524 Open mixed conifer forest above the river. Phenology: flowering & fruiting. RM RM 761374 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 55039 B. E. Nelson 2001 8 1 213 U.S.A. Colorado Routt North-central Colorado: Park Range: along Trail 1204 along Middle Fork Little Snake River between Big Red Park and the Continental Divide, ca 29.5 air mi N of Steamboat Springs. -106.8543 40.9095 1 2682 2780 Aspen forest. Phenology: flowering & fruiting. RM RM 761321 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 55202 B. E. Nelson 2001 8 6 218 U.S.A. Colorado Routt North-central Colorado: Park Range: northern part of Green Ridge on Forest Road 285, ca 7-7.5 air mi SE of Oak Creek; ca 4.5 air mi NE of Yampa. -106.8588 40.2011 1 2792 2878 Aspen forest. Phenology: flowering & fruiting. RM RM 761320 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 55265 B. E. Nelson 2001 8 7 219 U.S.A. Colorado Routt North-central Colorado: Park Range: on the east side of Green Ridge just N of Muddy Slide (The Slide), ca 6-6.5 air mi E of Yampa; ca 9.5-10 air mi SE of Phippsburg. -106.7822 40.157 2 2878 3134 Open slopes and draw on Mancos shale. Phenology: flowering. RM RM 761319 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 55437 B. E. Nelson 2001 8 8 220 U.S.A. Colorado Routt North-central Colorado: Park Range: along Horse Creek to Rock Creek and the ridge to the north, ca 1.5-2 air mi E of Long Park, ca 15.5-16 air mi SE of Yampa. -106.6483 40.0391 1 2606 2707 Meadow and open grassy lodgepole pine forest on ridgetop. Phenology: flowering & fruiting. RM RM 761318 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 55504 B. E. Nelson 2001 8 8 220 U.S.A. Colorado Grand North-central Colorado: Park Range: along old logging road between Jolley and Horse creeks, ca 4 air mi WSW of Gore Pass, ca 12.5 air mi W of Kremmling. -106.6291 40.0538 1 2682 2759 Open aspen forest. Phenology: flowering. RM RM 761317 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 55620 B. E. Nelson 2001 8 13 225 U.S.A. Colorado Routt North-central Colorado: Elkhead Mountains: along South Fork Slater Creek, ca 1 1/4-1 3/4 air mi N of Lost Park, ca 22-22.5 air mi N of Hayden. -107.2894 40.8089 1 2512 2652 Aspen forest. Phenology: flowering & fruiting. RM RM 761316 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 55659 B. E. Nelson 2001 8 13 225 U.S.A. Colorado Moffat North-central Colorado: Elkhead Mountains: at the end of Forest Road 133, ca 3 air mi NE of Black Mountain, ca 2.5 air mi SE of Buck Point, ca 23.5 air mi NNE of Craig. -107.3272 40.8089 1 2817 2951 Small clearing in aspen-spruce-fir forest. Phenology: flowering & fruiting. RM RM 761315 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 56001 B. E. Nelson 2001 8 20 232 U.S.A. Colorado Jackson North-central Colorado: Rabbit Ears Range: along the Continental Divide ca 0.5-1 air mi NW of Chimney Rock, ca 8 air mi ESE of Muddy Pass; ca 27.5 air mi SSW of Walden. -106.4362 40.3583 1 2890 2987 Old logged area in mixed conifer-aspen forest. Phenology: flowering & fruiting. RM RM 761314 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 56271 B. E. Nelson 2001 8 27 239 U.S.A. Colorado Jackson North-central Colorado: Rabbit Ears Range: along East Fork Arapaho Creek, ca 1.5-2 air mi W of Arapaho Ridge, ca 9 air mi SW of Rand; ca 24 air mi S of Walden. -106.3225 40.3873 1 2957 2987 Old clearcut with open lodgepole pine regeneration. Phenology: flowering & fruiting. RM RM 761313 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 70531 Ronald L. Hartman 2001 5 23 143 U.S.A. Colorado Moffat North-central Colorado: Wymore Gulch, ca 7 air mi NE of Craig. -107.4408 40.5934 1 2103 Sagebrush slopes. Phenology: flowering. RM RM 761312 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 71847 Ronald L. Hartman 2001 7 10 191 U.S.A. Colorado Jackson North-central Colorado: Never Summer Mountains: Never Summer Wilderness: between end of 4-wheel drive trail and start of wilderness or 1-2 air mi ESE of start of jeep trail. -105.9706 40.441306 2 2972 Coniferous forest. Phenology: flowering & fruiting. RM RM 761311 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 72000 Ronald L. Hartman 2001 7 13 194 U.S.A. Colorado Jackson North-central Colorado: Owl Mountain near junction of Forest roads 771 and 792. -106.1142 40.5322 1 2713 Lodgepole pine. Phenology: flowering & fruiting. RM RM 761310 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 73393 Ronald L. Hartman 2001 8 3 215 U.S.A. Colorado Jackson North-central Colorado: Medicine Bow Mountains: Forest Road 204, 0.7 road mi SE of Forest Service boundary, ca 1 air mi from Kings Canyon. -106.2098 40.9229 1 2594 Phenology: flowering & fruiting. RM RM 761309 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 73487 Ronald L. Hartman 2001 8 4 216 U.S.A. Colorado Jackson North-central Colorado: Medicine Bow Mountains: Colorado State Forest State Park: along County Road 8A. -106.1527 40.8503 1 2621 Aspen grove and stream bottom. Phenology: flowering & fruiting. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2889 B. A. Packer J. Brondum and T. McGowan 1997 8 9 221 U.S.A. Wyoming Albany Laramie Range: along Bear Creek, ca 33 air mi SW of Douglas. -105.6441 42.2096 2274 Rock outcrops. Phenology: flowering & fruiting. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 41719 B. E. Nelson 1997 7 16 197 U.S.A. Wyoming Natrona [location and coordinates withheld] 2268 2317 Steep gravelly slope with rock outcrops, "pavement", grassy patches, and scattered limber pine. Phenology: flowering & fruiting. RM RM 169252 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil s.n. Edmund R. Cross 1913 8 31 243 U.S.A. Colorado Boulder Left-hand Creek near Puzzler, near Ward. 2743 Phenology: fruiting. RM RM 169293 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3389 George E. Osterhout 1906 8 17 229 U.S.A. Colorado Eagle Minturn. Phenology: fruiting. RM RM 312629 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5159 George E. Osterhout 1914 7 20 201 U.S.A. Colorado Larimer Estes Park. -105.52 40.3771 2 2286 Phenology: fruiting. RM RM 169253 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 7622 George E. Osterhout 1894 8 213 U.S.A. Colorado Larimer Mountains. Phenology: flowering & fruiting. RM RM 724599 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 02-05 Nan Lederer 2002 7 10 191 U.S.A. Colorado Grand Arapaho National Forest, Continental Divide Trail W of Willow Creek Pass. -106.0926 40.3396 1 2987 Dry lodgepole forest, disturbed roadside; with Vaccinium Lupinus caudatus, Anaphalis margaritacea and Arnica. Phenology: flowering & fruiting. RM RM 718092 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 9528 Robert D. Dorn 2002 8 16 228 U.S.A. Colorado Grand Gore Pass: W side. -106.571667 40.068333 2835 Stream bank, with Geranium richardsonii and Senecio triangularis. Phenology: fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4322 B. A. Packer T. McGowan 1998 7 15 196 U.S.A. Wyoming Converse Laramie Range: along Rabbit Creek, ca 20 air mi SW of Douglas. -105.7567 42.54 2134 2225 Along creek and adjacent granite outcroppings. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4643 B. A. Packer T. McGowan and J. Brondum 1998 7 21 202 U.S.A. Wyoming Albany Laramie Range: along Soldier Creek, ca 37 air mi S of Douglas. -105.3259 42.3834 1890 2012 In granite outcroppings. Phenology: flowering & fruiting. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 1104 James P. Vanderhorst 1990 7 15 196 U.S.A. Colorado Rio Blanco Flat Tops/White River Plateau: Flat Tops Wilderness: Mirror Lake Trail, ca 30 air mi E of Meeker; ca 6 air mi NW of Trappers Lake. -107.3242 40.0552 2621 2865 Northeast-facing forested slopes, with Engelmann spruce, subalpine fir, lodgepole pine, and aspen. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 1292 James P. Vanderhorst 1990 7 23 204 U.S.A. Colorado Garfield Flat Tops/White River Plateau: Broken Rib Spring, ca 9 air mi NE of Glenwood Springs. -107.2305 39.6732 3109 Wet area around spring, with Picea, Abies, and Salix. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 1392 James P. Vanderhorst 1990 7 28 209 U.S.A. Colorado Garfield Flat Tops/White River Plateau: Flat Tops Wilderness: vicinity of McMillan Lake, ca 30 air mi NNE of Glenwood Springs. -107.0787 39.9413 2804 Area of old forest fire with northeast exposure. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 1870 James P. Vanderhorst 1990 8 17 229 U.S.A. Colorado Rio Blanco Flat Tops/White River Plateau: Flat Tops Wilderness: Marvine Lakes, ca 29 air mi ESE of Meeker. -107.3622 39.9351 2835 Spruce-fir woods. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3378 James P. Vanderhorst Carlos Palaci 1991 7 15 196 U.S.A. Colorado Routt [location and coordinates withheld] 2621 Cow pasture about 1/4 mi from old homestead, meadows, and aspen woods. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3438 James P. Vanderhorst 1991 7 21 202 U.S.A. Colorado Eagle Flat Tops/White River Plateau: Deer Creek, ca 6 air mi W of Burns. -107.0016 39.8825 2743 Old burned forest with reproducing aspen. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3484 James P. Vanderhorst 1991 7 23 204 U.S.A. Colorado Garfield Flat Tops/White River Plateau: Lower Short Creek, ca 14 air mi NE of Glenwood Springs. -107.2117 39.746 3048 Meadows on hills above creek, with Festuca thurberi, snowberry, and sagebrush. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3618a James P. Vanderhorst 1991 7 25 206 U.S.A. Colorado Garfield Flat Tops/White River Plateau: Butler Creek, ca 18 air mi NW of Glenwood Springs. -107.7573 39.7605 2652 Meadows and aspen woods with snowberry. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3692 James P. Vanderhorst 1991 8 3 215 U.S.A. Colorado Rio Blanco Flat Tops/White River Plateau: Dunckley Flat Tops N of Dunckley Pass, ca 11 air mi WSW of Oak Creek. -107.1458 40.2011 2896 Meadow dominated by Veratrum. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3711 James P. Vanderhorst 1991 8 4 216 U.S.A. Colorado Rio Blanco Flat Tops/White River Plateau: Cyclone Creek, ca 19 air mi WSW of Oak Creek. -107.2989 40.1864 2621 Meadow above creek, with Veratrum, Dugaldia, and Rudbeckias. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3802 James P. Vanderhorst 1991 8 6 218 U.S.A. Colorado Garfield Flat Tops/White River Plateau: South Fork White River, "Budges Resort", ca 20 air mi N of Glenwood Springs. -107.3434 39.8333 2743 Meadows with grasses and forbs. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3860 James P. Vanderhorst 1991 8 6 218 U.S.A. Colorado Garfield Flat Tops/White River Plateau: limestone ridge above Bison Lake, ca 13 air mi N of Glenwood Springs. -107.3622 39.7605 3353 Exposed limestone with pockets of poorly drained soil, northern exposure, with scattered spruce. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4094 James P. Vanderhorst 1991 8 12 224 U.S.A. Colorado Rio Blanco Flat Tops/White River Plateau: Sleepy Cat Peak, ca 23 air mi ENE of Meeker. -107.531 40.1279 3201 South-facing meadows on Mancos shale substrate. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4121 James P. Vanderhorst 1991 8 12 224 U.S.A. Colorado Rio Blanco Flat Tops/White River Plateau: Sleepy Cat Trail, ca 16 air mi ENE of Meeker. -107.6438 40.1134 2774 Aspen woodland. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5497 B. A. Packer T. McGowan 1998 8 18 230 U.S.A. Wyoming Albany Laramie Range: Medicine Bow National Forest: ca 5 air mi SE of Laramie. -105.4497 41.254 2500 2591 In forested grassland on southwest facing slope. Phenology: flowering & fruiting. RM RM 793387 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 38493 B. E. Nelson 1996 7 11 193 U.S.A. Wyoming Carbon South-central Wyoming: Muddy Mountain, ca 8 air mi NE of Baggs; ca 47 air mi SSW of Rawlins. 2347 2408 Meadow areas above the mountain shrub-aspen thickets. Phenology: flowering. RM RM 793388 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 38572 B. E. Nelson 1996 7 14 196 U.S.A. Wyoming Carbon South-central Wyoming: Sierra Madre: along the Continental Divide off Sage Creek or County Road 401, ca 26 air mi S of Rawlins. 2460 2512 Mountain shrub and aspen thickets on lee slopes. Phenology: flowering. RM RM 793539 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 38613 B. E. Nelson 1996 7 14 196 U.S.A. Wyoming Carbon South-central Wyoming: Sierra Madre: along the Continental Divide off Sage Creek or County Road 401, ca 26 air mi S of Rawlins. 2460 2512 Sandy cut bank in sagebrush grassland. Phenology: flowering. RM RM 793538 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 38779 B. E. Nelson Beth Ward 1996 7 15 197 U.S.A. Wyoming Carbon South-central Wyoming: Sierra Madre: Hell Canyon off Green Ridge, ca 1 air mi E of Savery Creek, ca 41 air mi S of Rawlins; ca 20 air mi NE of Baggs; ca 3.5 air mi SW of Tullis. 2286 2347 Aspen woods. Phenology: flowering. RM RM 793540 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 38800 B. E. Nelson Beth Ward 1996 7 15 197 U.S.A. Wyoming Carbon South-central Wyoming: Sierra Madre: Hell Canyon off Green Ridge, ca 1 air mi E of Savery Creek, ca 41 air mi S of Rawlins; ca 20 air mi NE of Baggs; ca 3.5 air mi SW of Tullis. 2286 2347 Mountain shrub community adjacent to aspen woods. Phenology: flowering & fruiting. RM RM 793541 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 38910 B. E. Nelson 1996 7 15 197 U.S.A. Wyoming Carbon South-central Wyoming: Sierra Madre: along a small drainage on the south side of Browns Hill or County Road 602, ca 3/4 mi E of Tullis, ca 37.5 air mi S of Rawlins; ca 23 air mi NE of Baggs. 2353 2378 Sagebrush-bitterbrush-grassland slopes and ridgetop. Phenology: flowering. RM RM 793542 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 39044 B. E. Nelson 1996 7 18 200 U.S.A. Wyoming Sweetwater [location and coordinates withheld] 2134 2140 Meadows below the springs. Phenology: flowering. RM RM 793269 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 39074 B. E. Nelson 1996 7 21 203 U.S.A. Wyoming Carbon South-central Wyoming: Sierra Madre: along the Continental Divide on Miller Hill off Miller Hill or County Road 505, ca 18.5 air mi S of Rawlins; ca 6.5 air mi ESE of Bridger Pass. 2493 2536 Aspen woods. Phenology: flowering. RM RM 793268 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 39179 B. E. Nelson 1996 7 21 203 U.S.A. Wyoming Carbon South-central Wyoming: Sierra Madre: near the head of Littlefield Creek drainage, ca 26 air mi S of Rawlins; ca 29 air mi NE of Baggs. 2414 2439 Aspen-willow woods or aspen woods. Phenology: flowering. RM RM 793267 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 39250 B. E. Nelson 1996 7 21 203 U.S.A. Wyoming Carbon South-central Wyoming: Sierra Madre: on the divide between Wild Cow and Little Savery drainages, ca 2.5-3 air mi N of Ketchum Buttes, ca 32 air mi SSW of Rawlins; ca 22.5 air mi NE of Baggs. 2292 2353 Aspen woods. Phenology: flowering & fruiting. RM RM 793543 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 39749 B. E. Nelson 1996 8 13 226 U.S.A. Wyoming Carbon South-central Wyoming: Sierra Madre: along Dirtyman Fork and area to the south, 0.8-1.5 air mi SW of Dexter Peak, ca 5-5.5 air mi E of Tullis; ca 36 air mi S of Rawlins; ca 26.5 air mi NE of Baggs. 2414 2612 Open aspen forest. Phenology: flowering. RM RM 793263 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2324a Beth Ward 1996 7 11 193 U.S.A. Wyoming Sweetwater South-central Wyoming: Rock Springs Uplift: northern slopes and top at north end of Essex Mountain, ca 32 air mi NNE of Rock Springs. 2231 2445 Moist area. Phenology: flowering. RM RM 793265 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2678 Beth Ward 1996 7 14 196 U.S.A. Wyoming Carbon South-central Wyoming: Sierra Madre: top and south slopes of Battle Mountain, ca 8 air mi E of confluence of Savery Creek and Little Snake River; ca 18.5 air mi E of Baggs. 2103 2774 Top of mountain. Phenology: flowering. RM RM 793266 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3126 Beth Ward 1996 7 21 203 U.S.A. Wyoming Carbon South-central Wyoming: on east side of Atlantic Rim, ca 2 air mi SW of Bridger Pass; ca 20.5 air mi SSW of Rawlins. 2283 2335 Hillside above spring. Phenology: flowering. RM RM 793437 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3202 Beth Ward 1996 7 24 206 U.S.A. Wyoming Carbon South-central Wyoming: top and north slopes of Cow Creek Butte, ca 1 mi NW of Deep Gulch; ca 32 air mi SSW of Rawlins. 2368 2417 Open hillside. Phenology: flowering. RM RM 793262 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3239 Beth Ward 1996 7 24 206 U.S.A. Wyoming Carbon South-central Wyoming: north facing slopes and bottom of Garden Gulch, ca 1.5 air mi SW of Cow Creek Butte; ca 33 air mi SSW of Rawlins. 2204 2292 Moist draw. Phenology: flowering. RM RM 793261 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3838 Beth Ward 1996 8 18 231 U.S.A. Wyoming Carbon South-central Wyoming: Sierra Madre: below Rendle Rim, ca 1 air mi SSW of Rendle Butte; ca 30.5 air mi SSW of Rawlins. 2269 2402 Moist draw. Phenology: flowering. RM RM 793260 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3919 Beth Ward 1996 8 18 231 U.S.A. Wyoming Carbon South-central Wyoming: Sierra Madre: near headwaters of Wild Cow Creek, ca 3 air mi SW of Rendle Butte; ca 33 air mi SSW of Rawlins. 2201 2304 Shaded hillside. Phenology: flowering. RM RM 793259 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3951 Beth Ward 1996 8 20 233 U.S.A. Wyoming Carbon South-central Wyoming: Sierra Madre: northwest slopes of Battle Mountain, ca 3 air mi N of Colorado; ca 18 air mi E of Baggs. 2195 2524 Shaded aspen grove. Phenology: flowering. RM RM 793258 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4051 Beth Ward 1996 8 20 233 U.S.A. Wyoming Carbon South-central Wyoming: Sierra Madre: top and northeast slopes of Battle Mountain, ca 19 air mi E of Baggs. 2292 2698 Shaded draw. Phenology: flowering. RM RM 793264 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 888 Beth Ward 1996 6 17 169 U.S.A. Wyoming Carbon South-central Wyoming: Deep Creek Rim and draws on west-facing slope, ca 3 air mi E of Wyo Hwy 789; ca 8.5 air mi NNE of Baggs. 2036 2198 Rocky draw, sandy soil. Phenology: flowering. RM RM 960609 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 836 Roger L. Williams 1989 7 29 210 U.S.A. Wyoming Carbon Sierra Madre: Miller Creek, ca 10 air mi S of Encampment. -106.8243 41.065 2621 Moist open woods near creek. Occasional; flowers white. Phenology: flowering & fruiting. RM RM 962089 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 22548 B. E. Nelson 1992 6 24 176 U.S.A. Wyoming Albany Medicine Bow Mountains: Red Mountain and vicinity: ridge ca 1 air mi E of Red Mountain summit, ca 27 air mi SW of Laramie. -105.9086 41.0086 1 2439 2560 Lee slope in mountain shrub community. Phenology: flowering. RM RM 296256 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 768 B. E. Nelson Linda Nelson 1973 7 23 204 U.S.A. Wyoming Carbon Medicine Bow Mountains: 4.5 mi from the river on the North Platte River Access Road. -106.3872 41.1661 2713 Frequent in gravelly soil at the edge of the road. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 10307 June Haines 1991 8 28 240 U.S.A. Wyoming Albany Medicine Bow Mountains: ENE of Little Brooklyn Lake, behind Open Air Chapel, above road. -106.2367 41.3722 3164 Moist southeast-facing slope. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 9571 June Haines Tom Fletchall 1991 8 12 224 U.S.A. Wyoming Albany Medicine Bow Mountains: E of Brooklyn Lake, near plot 214. -106.2367 41.3722 1 3170 Edge of spruce-fir forest, near moist forb meadow. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 9678 June Haines 1991 8 14 226 U.S.A. Wyoming Albany Medicine Bow Mountains: SE of Brooklyn Lake, drainage above road just N of southern boundary of extended GLEES study area. -106.2367 41.3722 3137 Forb meadow in moist drainage. RM RM 357745 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 19841 Ronald L. Hartman 1984 9 2 246 U.S.A. Wyoming Carbon Medicine Bow Mountains: Kennaday Peak, ca 15 air mi E of Saratoga. -106.518 41.4523 3170 3292 Grassy and rocky slopes and ridges above treeline. Phenology: flowering. RM RM 161098 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4290 George E. Osterhout 1910 8 30 242 U.S.A. Colorado Larimer Chambers Lake. Phenology: fruiting. RM RM 159250 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4805 George E. Osterhout 1912 8 23 236 U.S.A. Colorado Larimer Thompson Canyon. Phenology: fertile. RM RM 157698 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4781 George E. Osterhout 1912 8 15 228 U.S.A. Colorado Larimer Little South: Rockwell's Place. Phenology: fertile. RM RM 159242 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 6335 George E. Osterhout 1924 8 6 219 U.S.A. Colorado Larimer Chambers Lake. Phenology: fertile. RM RM 159073 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5548 George E. Osterhout 1916 8 25 238 U.S.A. Colorado Larimer Estes Park. Phenology: fertile. RM RM 157699 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5151 George E. Osterhout 1914 7 20 201 U.S.A. Colorado Larimer E of Estes Park along the Thompson. Phenology: fertile. RM RM 80591 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4999 George E. Osterhout 1913 7 31 212 U.S.A. Colorado Jackson North Park. 2439 Phenology: flowering. RM RM 159071 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4804 George E. Osterhout 1912 8 23 236 U.S.A. Colorado Larimer Thompson Canyon above the Forks. Phenology: fertile. RM RM 159244 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5598 George E. Osterhout 1916 9 10 254 U.S.A. Colorado Larimer Glacier Park on the South Fork Thompson. Phenology: fertile. RM RM 170401 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3087 George E. Osterhout 1905 8 16 228 U.S.A. Colorado Larimer Thompson Canyon above the Forks. Possible hybrid with C. undulatum; narrow phyllary glands present. Phenology: fertile. RM RM 159246 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3362x George E. Osterhout 1906 8 16 228 U.S.A. Colorado Eagle Red Cliff. Phenology: fertile. RM RM 169294 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3389a George E. Osterhout 1906 8 17 229 U.S.A. Colorado Eagle Red Cliff. Phenology: fertile. RM RM 159070 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5158 George E. Osterhout 1914 7 20 201 U.S.A. Colorado Larimer E of Estes Park along the Thompson. Phenology: fertile. RM RM 157701 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 6641 George E. Osterhout 1926 8 16 228 U.S.A. Colorado Larimer Estes Park. Phenology: flowering & fruiting. RM RM 157706 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5209 George E. Osterhout 1914 7 20 201 U.S.A. Colorado Larimer E of Estes Park along the Thompson. Phenology: fertile. RM RM 157707 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3092 George E. Osterhout 1905 8 16 228 U.S.A. Colorado Larimer Estes Park: Park Hill. Phenology: flowering & fruiting. RM RM 157705 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3092 George E. Osterhout 1905 8 16 228 U.S.A. Colorado Larimer Estes Park. Phenology: flowering & fruiting. RM RM 312748 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4783 George E. Osterhout 1912 8 15 228 U.S.A. Colorado Larimer Little South: Rockwell's Place. Phenology: flowering & fruiting. RM RM 170395 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5156 George E. Osterhout 1914 7 20 201 U.S.A. Colorado Larimer E of Estes Park along the Thompson. Phenology: flowering & fruiting. RM RM 170386 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3566 George E. Osterhout 1907 8 7 219 U.S.A. Colorado Grand Sulphur Springs. Phenology: flowering & fruiting. RM RM 80592 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5006 George E. Osterhout 1913 8 2 214 U.S.A. Colorado Larimer Cameron Pass. 3048 Phenology: flowering & fruiting. RM RM 161097 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3267 George E. Osterhout 1906 7 20 201 U.S.A. Colorado Gilpin Toland. Phenology: flowering & fruiting. RM RM 161110 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5006 George E. Osterhout 1913 8 2 214 U.S.A. Colorado Larimer Cameron Pass. Phenology: flowering & fruiting. RM RM 170402 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3589a George E. Osterhout 1907 8 8 220 U.S.A. Colorado Grand Sulphur Springs. Phenology: flowering & fruiting. RM RM 159072 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3313 George E. Osterhout 1906 7 22 203 U.S.A. Colorado Grand Sulphur Springs. Phenology: flowering & fruiting. RM RM 161004 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4953 George E. Osterhout 1913 7 11 192 U.S.A. Colorado Routt Steamboat Springs. Phenology: flowering & fruiting. RM RM 169256 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2674 George E. Osterhout 1902 7 14 195 U.S.A. Colorado Routt Steamboat Springs. Phenology: flowering & fruiting. RM RM 159248 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4812 George E. Osterhout 1912 8 23 236 U.S.A. Colorado Larimer Thompson Canyon above the Forks. Phenology: flowering & fruiting. RM RM 169254 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3312 George E. Osterhout 1906 7 22 203 U.S.A. Colorado Grand Sulphur Springs. Phenology: flowering & fruiting. RM RM 157704 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 7617 George E. Osterhout 1904 7 28 210 U.S.A. Colorado Larimer Home Post Office. -105.692 40.6964 2 2286 Phenology: flowering & fruiting. RM RM 170406 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3091 George E. Osterhout 1905 8 16 228 U.S.A. Colorado Larimer Estes Park. Phenology: flowering & fruiting. RM RM 170391 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3057 George E. Osterhout 1905 7 16 197 U.S.A. Colorado Grand Sulphur Springs. -106.102 40.0731 1 2362 Phenology: flowering & fruiting. RM RM 170405 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3091 George E. Osterhout 1905 8 16 228 U.S.A. Colorado Larimer Estes Park: Park Hill. Phenology: flowering & fruiting. RM RM 169258 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4998 George E. Osterhout 1913 7 31 212 U.S.A. Colorado Jackson North Park: Michigan River. Phenology: flowering & fruiting. RM RM 159076 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4999 George E. Osterhout 1913 7 31 212 U.S.A. Colorado Jackson North Park: Michigan River. Phenology: flowering & fruiting. RM RM 170394 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4768 George E. Osterhout 1912 8 17 230 U.S.A. Colorado Larimer Stove Prairie, Bosworth's Ranch. Phenology: fertile. RM RM 161068 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2238 George E. Osterhout 1900 8 24 236 U.S.A. Colorado Jackson Hills E of North Park. Phenology: flowering & fruiting. RM RM 170390 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3589 George E. Osterhout 1907 8 8 220 U.S.A. Colorado Grand Sulphur Springs. Phenology: flowering & fruiting. RM RM 170388 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3266 George E. Osterhout 1906 7 20 201 U.S.A. Colorado Gilpin Toland. Phenology: flowering & fruiting. RM RM 170389 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2429 George E. Osterhout 1901 7 17 198 U.S.A. Colorado Boulder Ward. Phenology: flowering & fruiting. RM RM 169261 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 1840 George E. Osterhout 1899 8 29 241 U.S.A. Colorado Routt N of Bear [Yampa] River, E of Hayden. Phenology: flowering & fruiting. RM RM 170396 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4806 George E. Osterhout 1912 8 23 236 U.S.A. Colorado Larimer Thompson Canyon above the Forks. Phenology: flowering & fruiting. RM RM 169260 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2218 George E. Osterhout 1900 7 21 202 U.S.A. Colorado Larimer Estes Park. Phenology: flowering & fruiting. RM RM 170393 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4782 George E. Osterhout 1912 8 15 228 U.S.A. Colorado Larimer Little South: Rockwell's Place. Phenology: flowering & fruiting. RM USFS 312751 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4808 George E. Osterhout 1912 8 23 236 U.S.A. Colorado Larimer Thompson Canyon. Phenology: flowering & fruiting. RM RM 312742 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4769 George E. Osterhout 1912 8 17 230 U.S.A. Colorado Larimer Bosworth's Ranch. Phenology: flowering & fruiting. RM RM 157702 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 981 George E. Osterhout 1896 8 6 219 U.S.A. Colorado Larimer Vicinity of Stove Prairie. Phenology: flowering & fruiting. RM RM 312741 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4767 George E. Osterhout 1912 8 17 230 U.S.A. Colorado Larimer Bosworth's Ranch. Phenology: flowering & fruiting. RM RM 169257 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4797 George E. Osterhout 1912 8 13 226 U.S.A. Colorado Larimer Bosworth's Ranch, Stove Prairie. Phenology: flowering & fruiting. RM RM 312740 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4811 George E. Osterhout 1912 8 23 236 U.S.A. Colorado Larimer Thompson Canyon. Phenology: flowering & fruiting. RM RM 312752 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4809 George E. Osterhout 1912 8 23 236 U.S.A. Colorado Larimer Thompson Canyon. Phenology: flowering & fruiting. RM RM 159075 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5457 George E. Osterhout 1915 9 10 253 U.S.A. Colorado Larimer Along trail to Longs Peak. Phenology: flowering & fruiting. RM RM 161069 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5469 George E. Osterhout 1915 9 12 255 U.S.A. Colorado Larimer Longs Peak Inn, trail to Storm Pass. Seemingly abnormal heads, perhaps a peculiar form of C. o(s?)pathulatus, but having some resemblance to C. modestus. Phenology: flowering & fruiting. RM RM 169255 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5085 George E. Osterhout 1914 6 24 175 U.S.A. Colorado Routt Hayden. Phenology: flowering & fruiting. RM RM 157700 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4948 George E. Osterhout 1913 7 9 190 U.S.A. Colorado Routt Hayden. Phenology: flowering & fruiting. RM RM 159247 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5150 George E. Osterhout 1914 7 20 201 U.S.A. Colorado Larimer E of Estes Park along the Thompson. Phenology: flowering & fruiting. RM RM 169292 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3389 George E. Osterhout 1906 8 17 229 U.S.A. Colorado Eagle Minturn. Phenology: flowering & fruiting. RM RM 278191 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 10089 C. L. Porter Marjorie W. Porter 1965 8 16 228 U.S.A. Colorado Grand Near Tabernash, on U.S. Hwy 40. 2591 Open Pinus contorta forest. Common. Corollas white. Phenology: flowering & fruiting. RM RM 263020 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 8493 C. L. Porter Marjorie W. Porter 1960 8 7 220 U.S.A. Colorado Jackson 3 mi W of Cameron Pass at The Crags Campground. 2743 Open pine forest. Phenology: flowering & fruiting. RM USFS 476101 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil K-39 Charles A. Kutzleb 1927 7 5 186 U.S.A. Colorado Jackson Routt National Forest: Chedsey Creek, experimental plot 6. 2621 Slope level; gravelly loam soil; park habitat. Quite common. Phenology: flowering & fruiting. RM USFS 475996 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 399 Paul L. Ginter 1941 8 14 226 U.S.A. Colorado Larimer Roosevelt National Forest: junction Fish Creek and Little South Poudre River. 2469 Slope 5% east; soil deep gravelly silt; aspen habitat. Occasional. Phenology: flowering & fruiting. RM USFS 476116 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 38 Wayne L. Regelin 1969 7 22 203 U.S.A. Colorado Grand Fraser Experimental Forest: Fool Creek watershed near road 2, 6.5 mi SW of Fraser. 3201 Dry. Phenology: flowering. RM RM 170407 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3089 George E. Osterhout 1905 8 16 228 U.S.A. Colorado Larimer Canyon of the Thompson River, above the forks. Collection cited by Rydberg (1910, Bull. Torrey Bot. Club 37: 545) as Carduus americanus x C. laterifolius, and by Petrak (1917, Bieh. Bot. Centralbl. 35: 562) as Cirsium americanum x C. laterifolium with the combination C. xcanalense as a synonym. The name C. xcanalense was not validly published. The name Carduus canalensis, sp. nov., in Osterhout's hand is an unpublished herbarium name. I do not consider this plant to be a hybrid. Keil. Phenology: flowering & fruiting. RM RM 170397 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil s.n. Edmund R. Cross 1913 8 31 243 U.S.A. Colorado Boulder Left-hand Creek near Puzzler, near Ward. 2743 Brookside trail. Phenology: flowering. RM RM 313308 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil s.n. Edmund R. Cross 1913 8 2 214 U.S.A. Colorado Gilpin Dark Canyon, above Baltimore. 2774 Brookside trail. Phenology: flowering & fruiting. RM RM 159243 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil s.n. Edmund R. Cross 1913 8 2 214 U.S.A. Colorado Gilpin Dark Canyon, above Baltimore. 2774 Brookside trail. Phenology: flowering & fruiting. RM RM 313307 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil s.n. Edmund R. Cross 1913 9 1 244 U.S.A. Colorado Boulder Estes Park Road, near Ward. 2804 Dry roadsides. Phenology: flowering & fruiting. RM RM 57416 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2371 W. W. Robbins 1906 7 28 209 U.S.A. Colorado Boulder Eldora. -105.5726 39.9488 1 2621 2743 Phenology: flowering & fruiting. RM RM 57417 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2166 W. W. Robbins 1906 7 21 202 U.S.A. Colorado Boulder Sugar Loaf Mountain. -105.4189 40.0269 2718 Phenology: flowering & fruiting. RM RM 57415 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2246 W. W. Robbins 1906 7 24 205 U.S.A. Colorado Boulder Sugar Loaf Mountain. Phenology: flowering & fruiting. RM RM 61193 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3816 Francis Ramaley 1907 8 24 236 U.S.A. Colorado Boulder 2134 Phenology: flowering & fruiting. RM RM 64616 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5876 Francis Ramaley G. S. Dodds and W. W. Robbins 1908 7 20 202 U.S.A. Colorado Boulder Near Ward. 2896 Phenology: flowering & fruiting. RM RM 61195 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3405 Francis Ramaley W. W. Robbins 1907 8 10 222 U.S.A. Colorado Gilpin Small lake 1/4 mi below Tolland. -105.594 39.9045 2682 Shrub zone. Phenology: flowering & fruiting. RM RM 61194 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3604 Francis Ramaley W. W. Robbins 1907 8 3 215 U.S.A. Colorado Grand Middle Park: near Hot Sulphur Springs. -106.102 40.0731 1 2317 Phenology: flowering & fruiting. RM RM 575275 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 9571 June Haines Tom Fletchall 1991 8 12 224 U.S.A. Wyoming Albany Medicine Bow Mountains: E of Brooklyn Lake, near plot 214. -106.2328 41.3689 1 3170 Spruce-fir forest; near moist forb meadow. Phenology: flowering & fruiting. RM RM 293049 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 147B Robert C. Gardner 1971 7 22 203 U.S.A. Wyoming Carbon Wyo Hwy 130, ca 3 mi W of Ryan Park, E of North Brush Creek bridge. 2134 Moist roadside ditch.la Phenology: flowering & fruiting. RM RM 293145 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 123 Robert C. Gardner 1971 7 2 183 U.S.A. Wyoming Converse 8 mi SW of Esterbrook, on road to Ft. Fetterman Road. 1524 Along roadside. Chemical voucher. Phenology: flowering & fruiting. RM RM 293152 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 165 Robert C. Gardner 1971 7 31 212 U.S.A. Wyoming Albany Lake Owen, 11 mi N of Foxpark. 2439 Along dry roadside. Phenology: flowering & fruiting. RM RM 293154 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 146 Robert C. Gardner 1971 7 22 203 U.S.A. Wyoming Albany Wyo Hwy 130, ca 3 mi W of Centennial, just across Libby Creek bridge, along Forest Road. 2500 100 ft off road. Phenology: flowering & fruiting. RM RM 293153 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 143 Robert C. Gardner 1971 7 19 200 U.S.A. Wyoming Albany County Road 17, ca 1 mi SE of quarry, then ca 4 mi SE on two-rut road. 2256 With aspen and other broad-leaved trees. Phenology: flowering & fruiting. RM RM 574768 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5371 Robert D. Dorn 1992 9 10 254 U.S.A. Wyoming Carbon Douglas Creek. 2317 Rocky slope with Pseudotsuga and Juniperus. Corolla white. Phenology: flowering & fruiting. RM RM 329542 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3492 Robert D. Dorn 1980 6 30 182 U.S.A. Wyoming Carbon Sierra Madre. -107.18281 41.10011 2469 Oak-aspen with Wyethia and Lathyrus. Corolla white. Phenology: flowering & fruiting. RM RM 602324 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 15286 Walter Fertig Jane Struttmann 1994 8 1 213 U.S.A. Wyoming Albany Laramie Range: Headquarters Trail at The Summit rest area of I-80, ca 6 air mi SE of Laramie. 2658 Aspen-mountain big sagebrush grassland on calcareous soils; with Artemisia tripartita, Festuca idahoensis, Eriogonum umbellatum. cpDNA voucher specimen. Phenology: flowering & fruiting. RM USFS 402538 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 175 Webster B. Jones 1970 8 19 231 U.S.A. Wyoming Albany Sheep Mountain: near Halls Creek. -106.0618 41.2679 1 2591 Douglas fir clearing. Phenology: flowering & fruiting. RM RM 394856 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 391 Roger L. Williams 1986 8 10 222 U.S.A. Wyoming Carbon Sierra Madre: North Fork Encampment River, ca 7.5 air mi SW of Encampment. -106.9172 41.1565 1 2591 Occasional in moist woods and clearings. flowers pale pink-purple. Phenology: flowering & fruiting. RM RM 396697 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 550 Roger L. Williams 1987 7 5 186 U.S.A. Wyoming Carbon Sierra Madre: North Fork Encampment River, ca 3 air mi SW of Encampment. -106.844 41.1822 1 2317 Few plants in dry open basin. Flowers whitish. Phenology: flowering & fruiting. RM RM 335740 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 680 Francis B. Current 1979 8 10 222 U.S.A. Wyoming Carbon Battle Mountain, south face of mountain, Mexican Ridge, 9 air mi E Savery. 2439 Populus tremuloides overstory. Phenology: flowering & fruiting. RM RM 29095 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil s.n. Aven Nelson 1900 7 20 201 U.S.A. Wyoming Albany Tie City. Moist woods. Phenology: flowering & fruiting. RM RM 169259 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil s. n. Aven Nelson 1900 7 20 201 U.S.A. Wyoming Albany Tie City. Moist woods. Phenology: flowering & fruiting. RM RM 5104 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 1512 Aven Nelson 1895 7 31 212 U.S.A. Wyoming Albany Cummins. -106.0131 41.0577 2310 Phenology: flowering & fruiting. RM RM 29096 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 7948 Aven Nelson 1900 8 3 215 U.S.A. Wyoming Albany Telephone Mines. Alpine parks. Phenology: flowering & fruiting. RM RM 52135 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2009 Leslie N. Goodding 1903 8 24 236 U.S.A. Wyoming Carbon Bridger Peak. -107.0317 41.1865 1 2743 3353 Open flats. Phenology: flowering & fruiting. RM RM 302785 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2476 J. Francis Macbride 1913 6 18 169 U.S.A. Wyoming Albany Laramie. -105.5844 41.3133 2 2195 Pine woods. Phenology: flowering & fruiting. RM RM 223398 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil s. n. Aven Nelson 1934 7 2 183 U.S.A. Wyoming Albany Laramie. Phenology: flowering & fruiting. RM RM 222865 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil s. n. Ray J. Davis 1934 7 20 201 U.S.A. Wyoming Albany Laramie Phenology: flowering & fruiting. RM RM 542629 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2581 Scott Sundberg E. Lee 1984 8 9 222 U.S.A. Colorado Jackson SE of Steamboat Springs at junction of U.S. Hwy 40 and Colo Hwy 14 to Walden. Roadside, ashy soil. Phenology: flowering & fruiting. RM RM 48395 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 10 W. S. Cooper 2004 7 28 210 U.S.A. Colorado Larimer Estes Park. 2439 Phenology: flowering & fruiting. RM RM 223399 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil s. n. Harry Hapeman 1896 8 26 239 U.S.A. Colorado Larimer Estes Park, Lambs Ranch. Phenology: flowering & fruiting. RM RM 580904 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 17800 William A. Weber 1986 7 8 189 U.S.A. Colorado Rio Blanco Between Buford and Trappers Lake. 2550 Heads small; phyllaries with glutinous spot, inner one fimbriate; leaves little decurrent, white beneath; inflorescence openly branched; flowers white. Phenology: flowering & fruiting. RM RM 262347 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2641 Gerald B. Ownbey Yu-tseng Hsi 1958 8 18 230 U.S.A. Colorado San Juan U.S. Hwy 550 to Silverton, just N of La Plata county. 2621 In opening in aspen forest. Plants perennial, reproducing by root sprouts; flowers very pale yellow; leaves not decurrent. Phenology: fertile. RM RM 223400 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil s. n. Harry Hapeman 1936 8 23 236 U.S.A. Colorado Larimer Cameron Pass. 3135 Phenology: flowering & fruiting. RM RM 223378 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil s. n. Harry Hapeman 1936 8 29 242 U.S.A. Colorado Larimer Pingree Park Road. Phenology: flowering & fruiting. RM RM 81878 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 913 Edwin B. Payson 1915 8 12 224 U.S.A. Colorado Montrose 20 mi W of Montrose. 2286 Dry hills. Phenology: flowering & fruiting. RM RM 8415 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil s. n. C. S. Crandall 1896 7 10 192 U.S.A. Colorado Larimer Mountains. 2286 Phenology: flowering & fruiting. RM RM 47233 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2802 C. S. Crandall 1896 7 10 192 U.S.A. Colorado Larimer Bosworth's 2286 Phenology: flowering & fruiting. RM RM 568394 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 7924 Thomas W. Nelson Jane P. Nelson 1985 7 3 184 U.S.A. Colorado Larimer Along Colo Hwy 7, 7.6 mi from junction with Colo Hwy 36. 2743 Moist meadow. Phenology: flowering & fruiting. RM RM 568629 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 6620 Thomas W. Nelson Jane P. Nelson 1981 6 30 181 U.S.A. Colorado Larimer Along Colo Hwy 36, 5 mi from Estes Park. 2378 Juniper-pine woodland. Phenology: flowering & fruiting. RM RM 568628 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 6620 Thomas W. Nelson Jane P. Nelson 1981 6 30 181 U.S.A. Colorado Larimer Along Colo Hwy 36, 5 mi E of Estes Park. 2378 Juniper pine woodland. Phenology: flowering & fruiting. RM RM 157703 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3213 Ira W. Clokey 1918 8 6 218 U.S.A. Colorado Boulder Lake Eldora. 2835 Hill sides. Phenology: flowering & fruiting. RM RM 90089 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4408 Ellsworth Bethel H. M. Schmoll 1921 7 20 201 U.S.A. Colorado Boulder Ward. 2650 Open woods. Phenology: flowering & fruiting. RM RM 95406 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3213 Ira W. Clokey 1918 8 6 218 U.S.A. Colorado Boulder Lake Eldora. 2835 Hillsides. Phenology: flowering & fruiting. RM RM 47885 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5852 Frank Tweedy 1903 7 182 U.S.A. Colorado Boulder Near Boulder. 1524 1829 Plains and foothills. Phenology: flowering & fruiting. RM RM 43047 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4870 Frank Tweedy 1902 8 213 U.S.A. Colorado Boulder Mountains between Sunshine and Ward. 2896 Phenology: flowering & fruiting. RM RM 210154 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3665 William A. Weber 1947 8 28 240 U.S.A. Colorado Montrose Uncompahgre Plateau: 1 mi W of Windy Point. 2896 Rocky talus. Phenology: flowering & fruiting. RM RM 222863 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil s. n. Henrietta L. Zobel 1939 7 12 193 U.S.A. Colorado Boulder Middle Saint Vrain Canyon. Phenology: flowering & fruiting. RM RM 294199 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil s.n. G. A. Goodwin 1974 8 16 228 U.S.A. Wyoming Carbon Rock Creek burn west. 2835 1955 burn. Phenology: flowering & fruiting. RM RM 338136 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil s.n. Max H. Schroeder Gary L. Ranck 1973 7 31 212 U.S.A. Wyoming Carbon Stratton Hydrology Study Area: Sane Creek. -107.1381 41.4181 1 2134 2439 Sagebrush rangeland. Phenology: flowering & fruiting. RM RM 338095 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil s.n. Max H. Schroeder Gary L. Ranck U.S.A. Wyoming Carbon Stratton Hydrology Study Area. 2134 2439 Sagebrush rangeland. Phenology: flowering & fruiting. RM RM 338096 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil s.n. Max H. Schroeder Gary L. Ranck U.S.A. Wyoming Carbon Stratton Hydrology Study Area. 2134 2439 Sagebrush rangeland. Phenology: flowering. RM RM 916745 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 72889 B. E. Nelson 2007 7 10 191 U.S.A. Wyoming Albany Medicine Bow Mountains: ridge between Eagle and Beaver creeks above the Laramie River, ca 6 air mi SSW of Woods Landing; ca 31 air mi SW of Laramie. -106.0591 41.0335 2475 2597 Sagebrush meadow with scattered limber pine. Phenology: flowering. RM RM 916744 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 73083 B. E. Nelson 2007 7 17 198 U.S.A. Wyoming Carbon Medicine Bow Mountains: ca 0.8 air mi N of Colorado and ca 1 air mi E of North Platte River, ca 40 air mi SE of Saratoga. -106.3291 41.0118 2463 2500 Scrub aspen with sagebrush, bitterbrush, and scattered lodgepole pine. Phenology: flowering. RM RM 916729 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 1464 Laura E. Lukas 2007 6 27 178 U.S.A. Wyoming Carbon Medicine Bow Mountains: Platte River Wilderness: along Trail 506 and Douglas Creek, 1 air mi E of Pike Pole Campground, ca 44 air mi SW of Laramie; ca 29 air mi SE of Saratoga. -106.4203 41.1341 2273 Mixed spruce-fir forest along creek. Phenology: flowering. RM RM 916747 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 1552 Laura E. Lukas 2007 6 29 180 U.S.A. Wyoming Carbon Medicine Bow Mountains: Sixmile Creek and Lost Park area, ca 3 air mi SW of Pelton Creek Campground, ca 40 air mi SW of Laramie; ca 36 sir mi SE of Saratoga. -106.3546 41.0552 2669 Lodgepole pine forest. Phenology: flowering. RM RM 916746 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2000 Laura E. Lukas 2007 7 5 186 U.S.A. Wyoming Albany Medicine Bow Mountains: Clark Park, SE of intersection of Forest Road 101 (Sand Lake Road) and Forest Road 323, ca 7 air mi NNW of Centennial. -106.1844 41.3862 2922 3022 Park. Phenology: flowering. RM RM 916728 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2223 Laura E. Lukas 2007 7 13 194 U.S.A. Wyoming Carbon Medicine Bow Mountains: North French Creek at intersection of Forest Road 227 (North French Creek Road) and Forest Road 225 (South French Creek Road), ca 20 air mi SE of Saratoga. -106.4585 41.2835 2625 2635 Wet meadow. Phenology: flowering. RM RM 916727 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2359 Laura E. Lukas 2007 7 15 196 U.S.A. Wyoming Carbon Medicine Bow Mountains: Barrett Creek, along Forest Road 225 (South French Creek Road), ca 3 air mi S of Wyo Hwy 130, ca 20 air mi SE of Saratoga. -106.4859 41.2922 2719 Moist woods. Phenology: flowering. RM RM 916726 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2623 Laura E. Lukas 2007 7 16 197 U.S.A. Wyoming Albany Medicine Bow Mountains: Swan Creek and Douglas Creek, just S of Bobbie Thomson Campground, ca 37 air mi SW of Laramie. -106.2534 41.1471 2664 Woods. Phenology: flowering. RM RM 916725 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2696 Laura E. Lukas 2007 7 18 199 U.S.A. Wyoming Albany Medicine Bow Mountains: Little Beaver Creek, along Forest Road 542 (Keystone Road), 0.5 air mi NE of Keystone, ca 11 air mi SSW of Centennial. -106.2487 41.1702 2701 2711 Wet, open forest along creek. Phenology: flowering. RM RM 916724 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2991 Laura E. Lukas 2007 7 20 201 U.S.A. Wyoming Carbon Medicine Bow Mountains: S of Elkhorn Creek and North Platte River area W of Forest Road 534, ca 48 air mi SW of Saratoga. -106.3306 41.003 2502 Meadow between creek and dry sagebrush flats. Phenology: flowering. RM RM 916723 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3219 Laura E. Lukas 2007 7 25 206 U.S.A. Wyoming Albany Medicine Bow Mountains: near Lake Owen Creek, ca 1 air mi E of Lake Owen, ca 11 air mi S of Centennial. -106.0652 41.1448 2328 2506 Unbrunt, mixed conifer and aspen grove on edge of steppe. Phenology: flowering. RM RM 916722 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3471 Laura E. Lukas 2007 7 30 211 U.S.A. Wyoming Carbon Medicine Bow Mountains: South French Creek, ca 2 air mi W of intersection of Forest roads 225 and 206, ca 23 air mi SE of Saratoga. -106.4568 41.2407 2461 2611 In conifer-aspen forest. Phenology: flowering. RM RM 927636 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3618 Laura E. Lukas 2007 7 30 211 U.S.A. Wyoming Carbon Medicine Bow Mountains: Mullen Creek, ca 1 air mi E of intersection of Forest Road 500 (French Creek Road) and Forest Road 225 (South French Creek Road), ca 26 air mi SE of Saratoga. -106.4011 41.2305 2668 Edge of forest and pond. Phenology: flowering & fruiting. RM RM 916721 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3655 Laura E. Lukas 2007 8 1 213 U.S.A. Wyoming Albany Medicine Bow Mountains: North Fork area, just NW of North Fork Campground, running NW along Forest Road 101 (Sand Lake Road), ca 1 air mi SE of Clark Park, ca 6 air mi NW of Centennial. -106.1766 41.3649 2818 2920 Mixed conifer forest, southwest-facing slope, Vaccinium understory. Phenology: flowering. RM RM 916720 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4257 Laura E. Lukas 2007 8 8 220 U.S.A. Wyoming Carbon Medicine Bow Mountains: South French Creek, just S of Forest Road 236, ca 2 air mi NE of intersection of Forest Road 225 (South French Creek Road) and Forest Road 236, ca 25 air mi SE of Saratoga and 12 air mi W of Centennial. -106.3821 41.2711 2655 Edge of conifer forest and dry meadow. Phenology: flowering & fruiting. RM RM 916719 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4460 Laura E. Lukas 2007 8 13 225 U.S.A. Wyoming Carbon Medicine Bow Mountains: along Forest Road 208 1F, ca 1 air mi S of South Fork Corral Creek, ca 5 air mi S of Ryan Park; ca 21 air mi SE of Saratoga. -106.4938 41.2553 2735 Lodgepole pine and spruce forest along creek. Phenology: fruiting. RM RM 916718 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4474 Laura E. Lukas 2007 8 13 225 U.S.A. Wyoming Carbon Medicine Bow Mountains: just S of intersection of Forest roads 232 and 210, ca 1 air mi W of Ryan Park; ca 17 air mi SE of Saratoga. -106.5269 41.3196 2708 Meadow near pond. Phenology: fruiting. RM RM 916717 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 4677 Laura E. Lukas 2007 8 15 227 U.S.A. Wyoming Albany Medicine Bow Mountains: Indian Creek, just N of Forest Road 527, ca 1 air mi from intersection of Forest Road 517 (Dry Park Road) and Forest Road 575, ca 11 air mi SSW of Centennial. -106.185 41.1511 2774 2810 Clearing in forest. Phenology: flowering. RM RM 916731 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 75893 B. E. Nelson 2008 7 31 213 U.S.A. Wyoming Albany Medicine Bow Mountains: summit and north slope of Jelm Mountain, ca 24.7 air mi SW of Laramie. -105.9784 41.1009 2804 2943 Lodgepole pine forest with outcrop ridge. Phenology: flowering. RM RM 929552 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 76065 B. E. Nelson 2008 8 5 218 U.S.A. Wyoming Carbon Sierra Madre: Miner Creek and canyons and ridge to the NW, ca 1/4 below confluence of North and South forks, ca 4 air mi SSW of Encampment. -106.8215 41.153 2332 2487 Easterly-facing sagebrush slope. Phenology: flowering. RM RM 916716 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5946 Laura E. Lukas Patricia E. Lukas 2008 7 9 191 U.S.A. Wyoming Carbon Medicine Bow Mountains: Platte River Wilderness: surrounding confluence of Devils Gate Creek and Douglas Creek, ca 4 air mi SE of Trail 506 Trailhead and Pike Pole Campground, ca 17 air mi SSW of Centennial. -106.3682 41.114 2444 2446 Edge of sagebrush and forest. Phenology: flowering. RM RM 916743 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 6082 Laura E. Lukas Patricia E. Lukas 2008 7 13 195 U.S.A. Wyoming Carbon Medicine Bow Mountains: Savage Run Wilderness: along Cottonwood Creek and Trail 502, ca 1 mi from trailhead, ca 15 air mi SW of Centennial. -106.3788 41.1733 2508 Wet meadow. Phenology: flowering. RM RM 916742 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 6378 Laura E. Lukas 2008 7 22 204 U.S.A. Wyoming Carbon Medicine Bow Mountains: along Fourmile Creek near the end of improved Forest Road 329 (Fallen Pines Road), ca 1.5 air mi S of Morgan, ca 12 air mi N of Centennial; ca 10 SE of Arlington. -106.1398 41.4629 2835 Along creek in mixed conifer forest. Phenology: flowering & fruiting. RM RM 927635 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 6434 Laura E. Lukas 2008 7 22 204 U.S.A. Wyoming Carbon Medicine Bow Mountains: ca 0.5 air mi SW of Sevenmile Lake, along Sevenmile Creek, ca 10 air mi N on Centennial; ca 21 air mi S of Arlington. -106.1435 41.4317 2975 Park. Phenology: flowering & fruiting. RM RM 916741 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 6601 Laura E. Lukas 2008 7 23 205 U.S.A. Wyoming Carbon Medicine Bow Mountains: area surrounding Lincoln Park Campground, ca 4 air mi N of Ryan Park; ca 16 air mi SE of Saratoga. -106.5133 41.3755 2448 Sagebrush steppe along road. Phenology: flowering. RM RM 916740 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 6894 Laura E. Lukas 2008 7 25 207 U.S.A. Wyoming Carbon Medicine Bow Mountains: Sawmill Park, S of intersection of Forest roads 120 and 120.2F, ca 8 air mi SW of Arlington; ca 19 air mi NW of Centennial. -106.3244 41.5347 2714 Dry meadow uphill from park. Phenology: flowering. RM RM 916739 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 7017 Laura E. Lukas 2008 7 28 210 U.S.A. Wyoming Carbon Medicine Bow Mountains: Mill Creek along Forest Road 241, near intersection with Forest Road 200.3G, ca 17 air mi W of Centennial; ca 2 air mi N of Ryan Park. -106.4762 41.3452 2656 Mixed conifer forest. Phenology: flowering. RM RM 916738 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 7127 Laura E. Lukas 2008 7 30 212 U.S.A. Wyoming Carbon Medicine Bow Mountains: Lime Kiln Park, SW of Forest Road 261 (Cedar Pass Road), ca 14 air mi E of Saratoga; ca 7 air mi N of Ryan Park. -106.5354 41.4277 2687 Dry park. Phenology: flowering. RM RM 916737 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 7247 Laura E. Lukas 2008 7 30 212 U.S.A. Wyoming Carbon Medicine Bow Mountains: vicinity of Pass Creek, S of intersection of Forest Road 261 (Cedar Pass Road) and Forest Road 134, ca 18 air mi E of Saratoga; ca 15 air mi SW of Arlington. -106.4533 41.4837 2550 Meadow uphill from creek, scattered pines. Phenology: flowering. RM RM 916736 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 7838 Laura E. Lukas 2008 8 11 224 U.S.A. Wyoming Carbon Medicine Bow Mountains: wetlands S of Forest Road 101 (Sand Lake Road), ca 1 air mi S of intersection with Forest Road 104, ca 40 air mi WNW of Laramie; ca 10 air mi SW of Arlington. -106.3262 41.4825 2788 Park and open forest. Phenology: flowering. RM RM 916732 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 8081 Laura E. Lukas 2008 8 13 226 U.S.A. Wyoming Albany Medicine Bow Mountains: Game and Fish Trail 386 W, on west slope of Sheep Mountain, ca 27 air mi W of Laramie; ca 4 air mi NW of Woods Landing. -106.0682 41.1416 2460 Draw with aspen overstory in sagebrush steppe. Phenology: flowering. RM RM 916735 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 8396 Laura E. Lukas Bernadette Kuhn 2008 8 23 236 U.S.A. Wyoming Albany Medicine Bow Mountains: Sheep Mountain, along Trail 386 (Sheep Mountain Trail), near top of Chokecherry Creek, ca 23 air mi WSW of Laramie; ca 7 air mi SE of Centennial. -106.0319 41.2439 2807 Mixed conifer forest with open canopy in gravelly granite soil. Phenology: flowering. RM RM 916734 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 8482 Laura E. Lukas Bernadette Kuhn 2008 8 23 236 U.S.A. Wyoming Albany Medicine Bow Mountains: Sheep Mountain, starting at Trail 386 (Sheep Mountain Trail) along Johns Creek and ending at top of ridge, ca 23 air mi WSW of Laramie; ca 7 air mi SE of Centennial. -106.0399 41.2507 2764 Mixed conifer forest, along creek. Phenology: flowering. RM RM 916733 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 8589 Laura E. Lukas 2008 8 31 244 U.S.A. Wyoming Carbon Medicine Bow Mountains: North Fork Rock Creek, ca 1 air mi W of intersection of Forest Road 101 (Sand Lake Road) and Forest Road 101E, ca 12 air mi NNW of Centennial; ca 9 air mi S of Arlington. -106.2326 41.459 2967 Edge of conifer forest and fen. Phenology: flowering. RM RM 178281 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3805 George E. Osterhout 1908 8 15 228 U.S.A. Colorado Larimer Mount Cameron. Phenology: flowering. RM RM 929556 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 9793 Laura E. Lukas 2009 7 7 188 U.S.A. Wyoming Carbon Medicine Bow Mountains: along French Creek, just S and SW of intersection of County Road 660 (French/Holmes Road) and BLM Road 3404, ca 33 air mi ESE of Encampment. -106.5234 41.211 2361 Along creek, sagebrush hills. Phenology: flowering. RM RM 929555 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 10064 Laura E. Lukas 2009 7 13 194 U.S.A. Wyoming Carbon Medicine Bow Mountains: W of the Platte River Wilderness, just W and SW of Elkhorn Point, ca 20 air mi SE of Encampment and ca 4 air mi N of Colorado. -106.42 41.059 2352 Sagebrush hills. Phenology: flowering. RM RM 929554 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 10147 Laura E. Lukas 2009 7 13 194 U.S.A. Wyoming Carbon Medicine Bow Mountains: W of Platte River Wilderness, just NW of Elkhorn Point, ca 20 air mi SE of Encampment and ca 5 air mi N of Colorado. -106.4251 41.0717 2546 2578 Aspen and Douglas fir groves among sagebrush hills. Phenology: flowering. RM RM 916715 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 10463 Laura E. Lukas 2009 7 20 201 U.S.A. Wyoming Carbon Medicine Bow Mountains: just S of I-80, Wagonhound Road and Bear Creek, ca 3.5 air mi NW of exit 267 (Wagonhound) and ca 4 air mi SE of Elk Mountain (town). -106.3471 41.6545 2288 Stream banks in sagebrush hills. Phenology: flowering. RM RM 929553 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 11120 Laura E. Lukas 2009 8 24 236 U.S.A. Wyoming Carbon Medicine Bow Mountains: area between Bitter and Cedar creeks, along BLM Road 3417, ca 11 air mi E of Saratoga and ca 10 air mi NW of Ryan Park. -106.5844 41.4494 2526 Aspen forest in drainage surrounded by sagebrush hills. Phenology: flowering. RM RM 841592 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3365 Bonnie Heidel 2009 7 30 211 U.S.A. Wyoming Carbon Sierra Madre: west side of Battle Mountain, ca 9 air mi E of Savery. 2219 Dry gravelly sagebrush steppe within mixed shrubland, west aspect, 5% slope, with Artemisia tridentata, Purshia tridentata, Festuca idahoensis. Phenology: flowering. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2584 Michael K. Kirkpatrick 2010 7 8 189 U.S.A. Colorado Summit Gore Range: Arapaho National Forest: North Rock Creek near boundary of Eagles Nest Wilderness, ca 7 air mi NW of Silverthorne and ca 9 air mi SSE of Green Mountain Reservoir. -106.1673 39.7108 2890 2932 Mixed conifer forest and openings. Phenology: flowering. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3214 Michael K. Kirkpatrick 2010 7 23 204 U.S.A. Colorado Summit Gore Range: Arapaho National Forest: Buffalo Mountain Trail along Ryan Gulch below Eagles Nest Wilderness , ca 2.5 air mi WSW of Silverthorne. -106.11 39.6204 2975 3170 Dry lodgepole pine forest and meadow openings. Phenology: flowering. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 3872 Michael K. Kirkpatrick 2010 8 4 216 U.S.A. Colorado Summit Williams Fork Mountains: Arapaho National Forest: Cottonwood Gulch, ca 3 air mi E of Green Mountain Reservoir and 4 air mi ENE of Heeney. -106.2428 39.88 2682 2817 Drainage flanked by aspen and Douglas fir. Phenology: flowering. RM USFS 898331 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 83408 B. E. Nelson 2011 7 25 206 U.S.A. Colorado Summit Gore Range: Arapaho National Forest: Eagles Nest Wilderness: from ca 1 air mi N of Surprise Lake N to the wilderness boundary just S of Cataract Creek, ca 18.5-19 air mi NW of Silverthorne at I-70. -106.306 39.8257 2652 2850 Aspen forest with subalpine fir. Phenology: flowering. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 83694 B. E. Nelson 2011 8 16 228 U.S.A. Colorado Grand Gore Range: from the end of Dice Hill or BLM Road 2750, ca 3/4 mi S to Dice Hill, ca 8-9 air mi SSW of Kremmling. -106.4385 39.9468 2939 2957 Second growth lodgepole pine with scattered spruce-fir-Douglas fir-aspen. Phenology: flowering. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 83829 B. E. Nelson 2011 8 17 229 U.S.A. Colorado Summit Gore Range: Arapaho National Forest: along Forest Road 1832, ca 2 air mi ENE of Sheep Mountain, ca 25.5 air mi NW of Silverthorne at I-70. -106.4038 39.893 2871 Open aspen forest with scattered lodgepole pine and fir. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 83880 B. E. Nelson 2011 8 22 234 U.S.A. Colorado Summit Williams Fork Mountains: Arapaho National Forest: lower end of Miller Gulch above Green Mountain Reservoir and Colo Hwy 9, ca 18 air mi NNW of Silverthorne at I-70. -106.2351 39.8539 2423 2500 Open Douglas fir on northerly-facing slope on shaly clay Phenology: flowering. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 83960 B. E. Nelson 2011 8 22 234 U.S.A. Colorado Eagle Gore Range: White River National Forest: Elliott Ridge from ca 1/3 mi S of the trailhead at Blue Lake to the first saddle, ca 13-13.5 air mi N of Vail. -106.4154 39.8313 3414 3463 Dry, rocky slopes. Phenology: flowering & fruiting. RM RM 828119 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 8177 Jeanette Flaig 2008 7 16 198 U.S.A. Colorado Grand Blue Valley Ranch. 2632 Mixed conifer forest with opening and scattered aspen along road. Phenology: fruiting. RM RM 908255 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 8840 Jeanette Flaig 2009 7 28 209 U.S.A. Colorado Grand Blue Valley Ranch: E of Colo Hwy 9; E of Derringer Loop. 2655 Aspen grove. Phenology: flowering & fruiting. RM RM 960102 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 1676 Roger L. Williams 2012 9 7 251 U.S.A. Wyoming Carbon Sierra Madre: Green Mountain Road, ca 8 air mi SW of Encampment. -106.8927 41.1167 500 2835 Dry roadside. Rare. Phenology: flowering & fruiting. RM USFS Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 83960 B. E. Nelson 2011 8 22 234 U.S.A. Colorado Eagle Gore Range: White River National Forest: Elliott Ridge from ca 1/3 mi S of the trailhead at Blue Lake to the first saddle, ca 13-13.5 air mi N of Vail. -106.4154 39.8313 3414 3463 Dry, rocky slopes. Phenology: flowering & fruiting. RM RM 959870 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 1730 Roger L. Williams 1997 8 3 215 U.S.A. Wyoming Carbon Sierra Madre: North Fork Encampment River, ca 7 air mi SW of Encampment. -106.9062 41.1552 700 2560 Open dry flat. Rare; flowers violet. Phenology: flowering. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 1079 Lori E. Brummer 2010 7 26 207 U.S.A. Colorado Montrose Uncompahgre Plateau: Uncompahgre National Forest: Windy Point and Iron Springs Mesa, Forest Road 507, ca 35 air mi W of Montrose. -108.5355 38.4566 2606 2915 South-facing slopes with sandstone outcrops. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 1379 Lori E. Brummer 2010 7 30 211 U.S.A. Colorado Mesa Battlement Mesa: Grand Mesa National Forest: Brush Creek Trail to Battlement Trail, ca 46 air mi NW of Grand Junction. -107.8408 39.3403 2611 3109 Open meadow on south-facing slope. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 5917 Lori E. Brummer 2011 7 24 205 U.S.A. Colorado Ouray Uncompahgre Plateau: above East Fork Spring Creek, off of Forest Road 532, 3.1 road mi N of Divide or Forest Road 402, ca 17 air mi SSW of Montrose. -107.9988 38.2623 2685 2774 Subalpine meadow. Phenology: flowering. RM RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 6227 Lori E. Brummer Joe E. Brummer 2011 7 30 211 U.S.A. Colorado Ouray Uncompahgre Plateau: Happy Canyon Rim, Forest Road 510.3C off of Dave Wood Road, ca 15 air mil SSW of Montrose. -107.9547 38.282 2536 2609 Ponderosa pine on sandstone pavement. Phenology: flowering. RM RM 959890 Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 1745 Roger L. Williams 2014 9 1 244 U.S.A. Wyoming Carbon Sierra Madre: Jack Creek Road, ca 6 air mi WSW of Encampment. -106.9029 41.1769 1 2682 Mixed forest. Phenology: flowering & fruiting. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2181 Timothy W. Chumley 1995 7 21 202 U.S.A. Colorado Teller East-central Colorado: Mosquito Range to Plains: Rampart Range: USFS Woodland Park Work Center, 1400 Rampart Range Road or County Road 22, ca 2 road mi N of intersection with U.S. Hwy 24, ca 2 air mi N of Woodland Park. -105.0451 39.0202 1 2567 2609 On slopes in open ponderosa pine forest. Phenology: flowering. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 2998 Timothy W. Chumley 1995 8 8 220 U.S.A. Colorado Douglas East-central Colorado: Mosquito Range to Plains: Rampart Range: along Jackson Creek, ca 1 air mi N of intersection of Forest Road 300 or Rampart Range Road and Forest Road 507 or Jackson Creek Road, ca 17 air mi N of Woodland Park. -105.1012 39.2511 1 2500 2621 In an open, grassy flat adjacent to the creek. Phenology: flowering. RM Cirsium clavatum var. americanum physical specimen Asteraceae Cirsium clavatum var. americanum (A. Gray) D. J. Keil 39384 B. E. Nelson Amy J. Roderick 1996 7 30 212 U.S.A. Wyoming Carbon [location and coordinates withheld] 2908 Under limber pine. Phenology: flowering. RM RM Cirsium clavatum var. clavatum physical specimen Asteraceae Cirsium clavatum var. clavatum (M. E. Jones) Petr. 83566 B. E. Nelson 2011 8 15 227 U.S.A. Colorado Grand Blue River Valley: between the river and the north end of Lawson Ridge E of Colo Hwy 9, ca 4 air mi S of Kremmling. -106.3708 40.0061 2274 2292 Clay slopes and bottom of gully in sagebrush. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. clavatum physical specimen Asteraceae Cirsium clavatum var. clavatum (M. E. Jones) Petr. 9536 Lori E. Brummer 2012 7 7 189 U.S.A. Colorado Mesa Uncompahgre Plateau: Uncompahgre National Forest: Dominguez Ridge, just off of Brushy Ridge Trail or Forest Road 409, ca 30 air mi WSW of Delta. -108.6094 38.6246 2764 2768 Gambel oak mixed mountain shrub community. Phenology: flowering. RM RM Cirsium clavatum var. clavatum physical specimen Asteraceae Cirsium clavatum var. clavatum (M. E. Jones) Petr. 10242 Lori E. Brummer 2012 7 22 204 U.S.A. Colorado Ouray San Juan Mountains: Uncompahgre National Forest: Cimarron Ridge; Lou Creek Pass, ridge just S of Lou Creek Pass then W on Lou Creek Pass Trail to ridge above Kennedy Mine, ca 11 air mi NNE of Ridgway. -107.5793 38.2277 2943 3363 Moist meadow in aspen/spruce/fir mix. Phenology: flowering. RM RM Cirsium clavatum var. clavatum physical specimen Asteraceae Cirsium clavatum var. clavatum (M. E. Jones) Petr. 2223 Lori E. Brummer 2010 8 17 229 U.S.A. Colorado Gunnison Gunnison National Forest: S of McClure Pass, Raggeds Trail 820, ca 23 air mi NW of Paonia. -107.3201 39.0676 2560 2926 Riparian area in aspen. Phenology: flowering & fruiting. RM RM 961209 Cirsium clavatum var. clavatum physical specimen Asteraceae Cirsium clavatum var. clavatum (M. E. Jones) Petr. 1996-99 Lori E. Brummer 1996 8 8 221 U.S.A. Colorado Gunnison West Elk Mountains: Soap Creek Drainage, along Little Soap Park or Forest Road 721 for ca 1 mi S of park area, ca 28 air mi WNW of Gunnison. -107.33591 38.59382 2439 Spruce/aspen on gravelly soil with Bromus, Rubus, Symphoricarpos. Phenology: flowering & fruiting. RM RM 161096 Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 3267 George E. Osterhout 1906 7 20 201 U.S.A. Colorado Gilpin Toland. Phenology: flowering & fruiting. RM RM 70281 Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 3351 George E. Osterhout 1906 8 15 227 U.S.A. Colorado Lake Tennessee Pass. Phenology: flowering & fruiting. RM RM 159245 Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 3362 George E. Osterhout 1906 8 16 228 U.S.A. Colorado Eagle Red Cliff. Phenology: flowering & fruiting. RM USFS 476114 Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 274 William T. Kirkpatrick 1913 8 10 222 U.S.A. Colorado Rio Blanco White River National Forest: Sleepy Cat. 3048 Sandy soil. Phenology: flowering & fruiting. RM RM 34214 Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 386 F. E. Clements E. S. Clements 1901 8 2 214 U.S.A. Colorado El Paso Ruxton Dell 2950 Herbaria Formationum Coloradensium. Phenology: flowering & fruiting. RM RM 30563 Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 324 Kenneth K. Mackenzie 1901 8 213 U.S.A. Colorado Summit Near Breckenridge. 2926 Phenology: flowering & fruiting. RM RM 159249 Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 2707 George E. Osterhout 1900 6 26 177 U.S.A. Colorado Eagle Red Cliff. Phenology: flowering. RM RM 169290 Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 4260 George E. Osterhout 1910 7 19 200 U.S.A. Colorado Clear Creek Silver Plume. Phenology: flowering & fruiting. RM RM 169295 Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 3362a George E. Osterhout 1906 8 16 228 U.S.A. Colorado Eagle Red Cliff. Phenology: fruiting. RM RM 169289 Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 3351 George E. Osterhout 1906 8 15 227 U.S.A. Colorado Lake Tennessee Pass. Phenology: fertile. RM RM 169296 Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 3363 George E. Osterhout 1906 8 16 228 U.S.A. Colorado Eagle Red Cliff. Collection cited by Rydberg (1910, Bull. Torrey Bot. Club 37: 549) as Carduus griseus x C. parryi, and by Petrak (1917, Bieh. Bot. Centralbl. 35: 562) as Cirsium griseum x C. parryi with the combination C. xgriseiforme was not validly published. I do not consider this plant to be a hybrid.-Keil. Phenology: flowering & fruiting. RM RM 159507 Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 3363 George E. Osterhout 1906 8 16 228 U.S.A. Colorado Eagle Red Cliff. Collection cited by Rydberg (1910, Bull. Torrey Bot. Club 37: 549) as Carduus griseus x C. parryi, and by Petrak (1917, Bieh. Bot. Centralbl. 35: 562) as Cirsium griseum x C. parryi with the combination C. xgriseiforme was not validly published. I do not consider this plant to be a hybrid.-Keil. Phenology: flowering & fruiting. RM RM 70282 Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 3363 George E. Osterhout 1906 8 16 228 U.S.A. Colorado Eagle Red Cliff. Collection cited by Rydberg (1910, Bull. Torrey Bot. Club 37: 549) as Carduus griseus x C. parryi, and by Petrak (1917, Bieh. Bot. Centralbl. 35: 562) as Cirsium griseum x C. parryi with the combination C. xgriseiforme was not validly published. I do not consider this plant to be a hybrid.-Keil. Phenology: flowering & fruiting. RM USFS 898315 Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 3751 Michael K. Kirkpatrick 2010 8 2 214 U.S.A. Colorado Eagle Gore Range: White River National Forest: Eagles Nest Wilderness: Deluge Lake Trail, ca 7 air mi NNW of Vail Pass. -106.2571 39.638 2682 3109 Rocky aspen hillsides with riparian channels. Phenology: flowering. RM USFS 898314 Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 3906 Michael K. Kirkpatrick 2010 8 5 217 U.S.A. Colorado Summit Front Range: Arapaho National Forest: Bakers Tank, Boreas Pass Road (Forest Road 10), ca 3 air mi SE of Breckenridge. -105.9968 39.4442 3317 Riparian meadow with scattered pine and spruce. Phenology: flowering. RM RM Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 4523 Michael K. Kirkpatrick 2010 8 12 224 U.S.A. Colorado Eagle Sawatch Range: White River National Forest: unnamed wet meadow along Missouri Creek, ca 15 air mi S of Dowds Junction. -106.4918 39.389 3304 Subalpine fen. Phenology: flowering. RM RM Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 4623 Michael K. Kirkpatrick 2010 8 22 234 U.S.A. Colorado Eagle Gore Range: White River National Forest: Freeman Creek drainage N of Moniger-Muddy Pass Road (Forest Road 701), ca 5 air mi NW of I-70 exit 176 at Vail. -106.4499 39.689 2865 2902 Dry subalpine meadow. Phenology: flowering. RM RM Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 4656 Michael K. Kirkpatrick 2010 8 24 236 U.S.A. Colorado Eagle Sawatch Range: White River National Forest: Wurts Ditch Road (Forest Road 705) near the headwaters of Mitchell Creek, ca 2.5 air mi W of Tennessee Pass. -106.3615 39.3631 3222 3243 Subalpine forest, openings, and roadside. Phenology: flowering. RM RM Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 82875 B. E. Nelson 2011 7 17 198 U.S.A. Colorado Pitkin Elk Mountains: White River National Forest: along Avalanche Creek from the trailhead at the end of Forest Road 310 SE to the wilderness boundary, ca 4 air mi NNE of Redstone; ca 11-12 air mi S of Carbondale. -107.1979 39.2304 2225 2256 Brushy canyon bottom with conifers, aspen, and cottonwood, and streambank. Phenology: flowering. RM RM Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 83092 B. E. Nelson 2011 7 19 200 U.S.A. Colorado Pitkin Sawatch Range: White River National Forest: along Lincoln Creek between Roaring Fork River and New York Creek, ca 6 air mi W of Independence Pass, ca 10 air mi SE of Aspen. -106.6789 39.1038 3000 3012 Rocky ridge and slopes and edge of lodgepole pine forest. Phenology: flowering. RM RM Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 6380 Lori E. Brummer 2011 8 2 214 U.S.A. Colorado Gunnison Elk Mountains: White River National Forest: upper part of Crystal Canyon to Schofield Park, along jeep trail, ca 14 air mi NNW of Crested Butte. -107.0731 39.0452 3091 3125 Along riparian area in subalpine. Phenology: flowering. RM RM Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 7108 Lori E. Brummer 2011 8 16 228 U.S.A. Colorado Gunnison Elk Mountains: White River National Forest: Maroon Bells-Snowmass Wilderness: Silver Creek Pass and area around Silver Creek Trail, ca 5 air mi NE of Marble. -107.1125 39.1047 3621 3734 Rocky alpine ridge and slopes. Phenology: flowering. RM RM Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 7271 Lori E. Brummer 2011 8 18 230 U.S.A. Colorado Gunnison Elk Mountains: White River National Forest: Maroon Bells-Snowmass Wilderness: upper East Fork Trail to Maroon Pass, ca 13.5 air mi N of Crested Butte. -107.0086 39.0387 3579 3885 Rock outcrop in alpine. Phenology: flowering. RM RM Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 7389 Lori E. Brummer 2011 8 19 231 U.S.A. Colorado Gunnison Elk Mountains: White River National Forest: Maroon Bells-Snowmass Wilderness: Hasley Basin Trail from East Fork Trail, ca 13 3/4 air mi NNW of Crested Butte. -107.0372 39.0483 3396 3689 Alpine meadow. Phenology: flowering. RM USFS 898313 Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 7601 Michael K. Kirkpatrick 2011 7 21 202 U.S.A. Colorado Eagle Sawatch Range: White River National Forest: Holy Cross Wilderness: Eagle Lake Trail to Halfmoon Lake, between Eagle and Avalanche peaks, along Lime Creek, ca 18 air mi SSE of Eagle. -106.6149 39.4335 2865 2987 Subalpine forest and roadside meadow with seeps. Phenology: flowering. RM RM Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 7940 Michael K. Kirkpatrick 2011 7 27 208 U.S.A. Colorado Eagle Sawatch Range: White River National Forest: Tellurium Lake Trail, off of Forest Road 506 (Burnt Mountain Road), ca 20 air mi SSE of Eagle. -106.6267 39.4032 3048 3140 Subalpine rocky meadows, boulder fields, and roadside. Phenology: flowering & fruiting. RM RM Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 8469 Michael K. Kirkpatrick 2011 8 7 219 U.S.A. Colorado Pitkin Sawatch Range: White River National Forest: Collegiate Peaks Wilderness: the Continental Divide from W of Grizzly Peak, ca 15 air mi SE of Aspen. -106.5813 39.0624 3567 3993 Alpine slopes and talus fields. Phenology: flowering. RM RM Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 8524 Michael K. Kirkpatrick 2011 8 9 221 U.S.A. Colorado Pitkin Elk Mountains: White River National Forest: Maroon Bells-Snowmass Wilderness: ridge and slopes NW of Mt. Daly and Capitol Peak, E of Capitol Creek, ca 13 air mi W of Aspen. -107.0743 39.1801 3579 3768 Alpine ridge with exposed siltstone, granite cliffs, and talus slopes. Phenology: flowering. RM RM Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 8624 Michael K. Kirkpatrick 2011 8 11 223 U.S.A. Colorado Gunnison Elk Mountains: White River National Forest: Maroon Bells-Snowmass Wilderness: cirque basin between Geneva Lake and Hagerman Peak, ca 7 air mi ENE of Marble. -107.0742 39.1035 3378 3414 Subalpine rocky meadow with willows and forb understory. Phenology: flowering. RM RM 1024288 Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 9983 Lori E. Brummer 2012 7 18 200 U.S.A. Colorado Delta Grand Mesa: Grand Mesa National Forest: Twin Lakes; slope N of Twin Lake #2 south to E side of Twin Lake #1, ca 12 3/4 air mi NE of Cedaredge. -107.8457 39.0737 3182 3292 Moist subalpine meadows. Phenology: flowering. RM RM 1024287 Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 10085 Lori E. Brummer 2012 7 19 201 U.S.A. Colorado Delta Grand Mesa: Grand Mesa National Forest: Crag Crest Trail, high point of trail, ca 3.5 trail mi from west trailhead, to ca 1.5 trail mi ENE of trailhead, ca 11 air mi NNW of Cedaredge. -107.946 39.0604 3317 3399 Along rocky subalpine ridge. Mesa and Delta county. Phenology: flowering. RM RM 1024286 Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 10580 Lori E. Brummer Joe E. Brummer 2012 7 29 211 U.S.A. Colorado Delta Grand Mesa: Gunnison National Forest: Chalk Mountain, southeast slope to Overland Reservior, ca 17.5 air mi NNW of Paonia. -107.6417 39.0943 3016 3345 Subalpine meadow. Phenology: flowering. RM RM 1024285 Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 10666 Lori E. Brummer Joe E. Brummer 2012 7 29 211 U.S.A. Colorado Delta Grand Mesa: Gunnison National Forest: Chalk Mountain, southeast slope to Overland Reservior, ca 17.5 air mi NNW of Paonia. -107.6417 39.0943 3016 3345 Bare north-facing subalpine slope. Phenology: flowering. RM RM 1024284 Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 11765 Lori E. Brummer 2012 9 12 256 U.S.A. Colorado Delta Grand Mesa: Grand Mesa National Forest: ridge off of Forest Road 129, SE of Kiser Reservoir, ca 9 air mi N of Cedaredge. -107.9341 39.0301 3047 Subalpine meadow. Phenology: flowering. RM USFS Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 7601 Michael K. Kirkpatrick 2011 7 21 202 U.S.A. Colorado Eagle Sawatch Range: White River National Forest: Holy Cross Wilderness: Eagle Lake Trail to Halfmoon Lake, between Eagle and Avalanche peaks, along Lime Creek, ca 18 air mi SSE of Eagle. -106.6149 39.4335 2865 2987 Subalpine forest and roadside meadow with seeps. Phenology: flowering. RM RM 1024355 Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 1416 Lori E. Brummer Bernadette Kuhn, Margarette Lyon 2010 8 2 214 U.S.A. Colorado Mesa Grand Mesa: Grand Mesa National Forest: Skyway Ski Trail and Scales Lakes, ca 30 air mi E of Grand Junction. -108.0624 39.0418 3231 3298 Subalpine meadow with rocky outcrops and low wet areas. Phenology: flowering & fruiting. RM RM 1024354 Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 1621 Lori E. Brummer 2010 8 6 218 U.S.A. Colorado Delta Grand Mesa: Grand Mesa National Forest: stream below Sackett Reservoir and adjoining roadside, ca 40 air mi E of Grand Junction. -107.8313 39.0642 3170 Along small stream in moist spruce/fir forest on steep slopes and adjoining roadside. Phenology: flowering. RM RM 1024353 Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 1650 Lori E. Brummer 2010 8 6 218 U.S.A. Colorado Mesa Grand Mesa: Grand Mesa National Forest: Lands End near Bolen Reservoir, ca 20 air mi ESE of Grand Junction. -108.2124 39.0163 2987 3037 Upland area under spruce next to small creek. Phenology: flowering. RM RM 1024289 Cirsium clavatum var. osterhoutii physical specimen Asteraceae Cirsium clavatum var. osterhoutii (Rydb.) D. J. Keil 5495 Lori E. Brummer Linda Deeds, Kim Hansen 2011 7 18 199 U.S.A. Colorado Mesa Uncompahgre Plateau: La Fair Creek off of Divide Road (Forest Road 402), ca 30 air mi W of Delta. -108.6521 38.7002 2512 2560 Ponderosa pine woodland with scattered aspen. Phenology: flowering. 3600 3,1,0 true