Record Number Database Code Specimen ID Project Herbarium Accession Number Barcode NPS Accession NPS Catalog Family Genus 1 Specific Epithet 1 Specific Author 1 Infraspecific Rank 1 Infraspecific Epithet 1 Infraspecific Author 1 Name 1 Qualifier Name 1 Qualifier Position Hybrid Symbol Genus 2 Specific Epithet 2 Specific Author 2 Infraspecific Rank 2 Infraspecific Epithet 2 Infraspecific Author 2 Name 2 Qualifier Name 2 Qualifier Position Conservation Status Annotations Site Key Collector Collector Number Other Collectors Day Collected Month Collected Year Collected Verbatim Collection Date Country State County Locality Site Description Minimum Elevation Maximum Elevation Elevation Unit LatitudeLongitude UTM TRS Decimal Latitude Decimal Longitude Geodetic Datum Coordinate Uncertainty Coordinate Uncertainty Unit Elevation Georeferenced TRS Georeferenced Georeference Sources Georeference Remarks Georeferenced By Specimen Notes Other Notes Phenology Cultivated Images Type Specimen? TypeDetails 1 RM 114143 Ebertowski 2002 RM Asteraceae Bidens frondosa L. RM-14460 Peter J. Ebertowski 3546 30 8 2002 U.S.A. Wyoming Niobrara Thunder Basin National Grassland and Vicinity: Sage Creek on County Road 64, ca 14 air mi NNE of Lusk; ca 19 air mi NE of Manville. Creek, among cattail marsh. 4420 ft. 42.944° N, 104.3376° W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO! T34N R62W S5 SW1/4 42.944 -104.3376 NAD 83 0 mi. N N Nat. Geog. TOPO! BEN Flowering and Fruiting N N 2 RM 119518 Ebertowski 2003 RM Asteraceae Bidens frondosa L. RM-14599 Peter J. Ebertowski 8187 13 8 2003 U.S.A. Wyoming Campbell Thunder Basin National Grassland and Vicinity: Little Powder River, on Wyo Hwy 59, ca 11 air mi N of Gillette; ca 30 air mi NW of Moorcroft. Stream bank. 4080 4320 ft. 44.4498° N, 105.4594° W T52N R72W S36 W1/2 44.4498 -105.4594 Flowering N N 3 RM 199112 Hazlett Asteraceae Bidens frondosa L. RM-18209 Donald L. Hazlett 9234 Eric Hazlett 24 8 1995 U.S.A. Wyoming Laramie Southeastern Plains: along Horse Creek. Riparian. 1600 1650 m. T18N R64W S23 Flowering and Fruiting N N 4 RM 199175 Hazlett Asteraceae Bidens frondosa L. RM-18217 Donald L. Hazlett 9407 9 9 1995 9 Sep 95 U.S.A. Wyoming Laramie Southeastern Plains: along Little Horse Creek (Harding property). Riparian. 1650 1700 m. T17N R63W S4 Flowering and Fruiting N N 5 RM 286869 Lyon 1994 Asteraceae Bidens frondosa L. RM-23008 Margarette J. Lyon 7644 20 8 1994 U.S.A. Colorado Mesa San Miguel and Lower Dolores River Drainages: Unaweep Canyon along West Creek. Riparian area with Acer negundo, Populus, Salix exigua, Eleocharis, and Equisetum. 7000 ft. 38.7477° N, 108.7627° W T15S R102W S14 38.7477 -108.7627 Flowering and Fruiting N N 6 RM 287457 Markow 2002 RM Asteraceae Bidens frondosa L. RM-23205 Stuart Markow 12419a 18 9 2002 U.S.A. Massachusetts Middlesex [location and coordinates withheld] Mixed shrub/grass community with Quercus, Spiraea, Fraxinus, Schyzachyrium, Rubus, Lindera. 250 ft. Flowering N N 7 RM 341156 Porter RM 260075 RM0274274 Asteraceae Bidens frondosa L. RM-32290 C. L. Porter 7993 Marjorie W. Porter 4 8 1959 U.S.A. Wyoming Goshen North Platte River valley, near Ft. Laramie. In water of ditch. 4400 ft. 42.2106° N, 104.5336° W; NAD 83, uncertainty 1 mi., Digital Map T26N R64W S22 42.2106 -104.5336 NAD 83 1 mi. N Y Digital Map Located at the crossing of the North Platte River and current WY Hwy 160; ca 1.25 air miles NE of Fort Laramie; geo-locate.org. EL Plants to 4 ft. tall. Buds N RM0274274 N 8 RM 341195 Porter RM 260062 RM0274273 Asteraceae Bidens frondosa L. RM-32329 C. L. Porter 8063 Marjorie W. Porter 25 9 1959 U.S.A. Wyoming Goshen Fort Laramie, along the North Platte River. Moist places, gravelly banks. 4230 ft. 42.2106° N, 104.5337° W; NAD 83, uncertainty 0.5 mi., Digital Map T26N R64W S22 42.2106 -104.5337 NAD 83 1 mi. Digital Map Located at the crossing of the North Platte River and WY Hwy 180; ca 0.75 miles west of Fort Laramie (the city); ca 1.25 air miles NE of Fort Laramie (the old military base); geo-locate.org. EL Fruiting N RM0274273 N 9 RM 375704 RMHERB1 RM 171186 RM0274278 Asteraceae Bidens frondosa L. RM-43218 George E. Osterhout 7587 24 8 1931 U.S.A. Wyoming Niobrara S of Lusk. 5000 ft. 42.6887° N, 104.4498° W; uncertainty 9+ mi. T31N R63W S5 42.6887 -104.4498 9 mi. Flowering N RM0274278 N 10 RM 379314 RMHERB1 RM 544026 RM0274314 Asteraceae Bidens frondosa L. RM-18706 Jan Pollet 654 2 9 1989 U.S.A. Wyoming Platte North Platte River: S of U.S. Hwy 26, 0.5 road mi S of Guernsey. 4340 ft. 42.2549° N, 104.7443° W; uncertainty 1 mi. T26N R66W S2 42.2549 -104.7443 1 mi. Flowering and Fruiting N RM0274314 N 11 RM 379427 RMHERB1 RM 543782 RM0274315 Asteraceae Bidens frondosa L. RM-18709 Jan Pollet 798 8 9 1989 U.S.A. Wyoming Platte Deadhead Creek, 6 road mi E of Wyo Hwy 34, 12 road mi SW of Wheatland. Creekbanks and creekbed. 5087 ft. 41.8345° N, 105.1662° W; uncertainty 1 mi. T22N R69W S31 41.8345 -105.1662 1 mi. N N Flowering and Fruiting N RM0274315 N 12 RM 389571 RMHERB1 RM 306698 RM0274276 Asteraceae Bidens frondosa L. RM-51888 Robert D. Dorn 3028 20 8 1977 U.S.A. Wyoming Goshen Streambank and sand bars of stream with Salix and Scirpus. 4000 ft. 42.0108° N, 104.06222° W; NAD 83, uncertainty 0.5 mi., Nat. Geog. TOPO! T24N R60W S34 E1/2 42.0108 -104.06222 NAD 83 1 mi. N N Nat. Geog. TOPO! SC Corolla yellow; plant 1m high. Buds N RM0274276 N 13 RM 391031 RMHERB1 RM 594878 RM0274277 Asteraceae Bidens frondosa L. RM-53116 Robert D. Dorn 5843 8 9 1994 U.S.A. Wyoming Platte Grayrocks Reservoir. Shore of reservoir with Lycopus and Salix. 4400 ft. 42.1407° N, 104.745° W; uncertainty 1 mi. T25N R66W S14 42.1407 -104.745 1 mi. N N Corolla yellow. Flowering and Fruiting N RM0274277 N 14 RM 391849 RMHERB1 RM 600979 RM0274279 Asteraceae Bidens frondosa L. RM-53654 Robert D. Dorn 6736 17 9 1995 U.S.A. Wyoming Laramie 3 mi W of Cheyenne. Ditchbank with Populus and Bidens. 6200 ft. 41.1886° N, 104.896° W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO! T14N R67W S16 N1/2 N1/2 41.1886 -104.896 NAD 83 0 mi. N N Nat. Geog. TOPO! BEN Corolla yellow. Flowering and Fruiting N RM0274279 N 15 RM 392486 RMHERB1 RM 681312 RM0274316 Asteraceae Bidens frondosa L. RM-54210 Robert D. Dorn 8608 12 9 2000 U.S.A. Wyoming Washakie Big Horn River at Worland. River bank with Rumex maritimus and Polygonum. 4100 ft. 44.0144° N, 107.9661° W; uncertainty 1 mi. T47N R93W S25 44.0144 -107.9661 1 mi. Flowering and Fruiting N RM0274316 N 16 RM 395915 WYNDD RM 681802 RM0274313 Asteraceae Bidens frondosa L. RM-19140 Steve Kettler 839 28 8 1991 U.S.A. Wyoming Platte Southeastern Plains: Cooney Creek, near Cooney Hills Road, ca 5.5 mi SW of junction with Palmer Canyon Road SW of Wheatland. Salix exigua/S. amygdaloides community on fine sandy alluvium with patches of coarse sand and gravel in floodplain; understory with Echinochloa muricata, Agrostis stolonifera, Polypogon monspeliensis, and Asclepis sp. 5010 ft. 41.9811° N, 105.1662° W; uncertainty 0.5 mi. T23N R69W S7 W1/2 SW1/4 41.9811 -105.1662 1 mi. Flowering and Fruiting N RM0274313 N 17 RM 398459 WYNDD RM 613498 RM0274275 Asteraceae Bidens frondosa L. RM-58233 Walter Fertig 14404 Jane Struttmann 17 8 1993 U.S.A. Wyoming Platte Southeastern Plains: ca 1.5 mi W of I-25; north edge of Wheatland adj. to Brookie Road. Fallow field dominated by Bromus inermis at edge of grove of Populus deltoides and Elaeagnus angustifolia. 4900 ft. 42.0976° N, 105.0192° W T25N R68W S33 SE1/4 42.0976 -105.0192 Flowering N RM0274275 N 18 RM 401245 WYNDD RM 683928 RM0274312 Asteraceae Bidens frondosa L. RM-19285 Walter Fertig 18576 18 8 1998 U.S.A. Wyoming Niobrara Eastern Plains: banks of Niobrara River just downstream of railroad bridge ca 0.3 mi NE of McMaster Reservoir, ca 2 mi W of Van Tassell; ca 15 mi E of Lusk. Agrostis stolonifera community on moist loamy clay soil at base of low ridge bordering Typha angustifolia/Scirpus patch along riverbank. 4750 ft. 42.6728° N, 104.1389° W; NAD 83, uncertainty 700 ft., Nat. Geog. TOPO! T31N R61W S12 South1/2 SE1/4 SW1/4 42.6728 -104.1389 NAD 83 700 ft. N N Nat. Geog. TOPO! BEN Fruiting N RM0274312 N 19 RM 403830 RMHERB1 RM 306698 Asteraceae Bidens frondosa L. RM-61264 Robert D. Dorn 3028 20 8 1977 U.S.A. Wyoming Goshen Streambank and sand bars of stream with Salix and Scirpus. 4000 ft. 42.01083° N, 104.06222° W; uncertainty 1 mi. T24N R60W S34 E1/2 42.01083 -104.06222 1 mi. Buds N N 20 RM 404960 RMHERB1 RM 594878 Asteraceae Bidens frondosa L. RM-62219 Robert D. Dorn 5843 8 9 1994 U.S.A. Wyoming Platte Grayrocks Reservoir. Shore of reservoir with Lycopus and Salix. 4400 ft. 42.1407° N, 104.745° W; uncertainty 1 mi. T25N R66W S14 42.1407 -104.745 1 mi. Flowering and Fruiting N N 21 RM 405142 RMHERB1 RM 681312 Asteraceae Bidens frondosa L. RM-62378 Robert D. Dorn 8608 12 9 2000 U.S.A. Wyoming Washakie Big Horn River at Worland. River bank with Rumex maritimus and Polygonum. 4100 ft. 44.0144° N, 107.9661° W; uncertainty 1 mi. T47N R93W S25 44.0144 -107.9661 1 mi. Flowering and Fruiting N N 22 RM 436553 South Dakota RM 113174 RM0274252 Asteraceae Bidens frondosa L. RM-66507 Arthur C. McIntosh 1189 29 8 1928 U.S.A. South Dakota Fall River Cascade Creek near Cascade Falls. Frequent along creek. 3270 ft. T8S R5E S30 43.3194 -103.5637 NAD 83 0 mi. Y Y Nat. Geog. TOPO! Flowering N RM0274252 N 23 RM 437017 South Dakota RM 106676 RM0274251 Asteraceae Bidens frondosa L. RM-66698 Arthur C. McIntosh 903 28 8 1926 U.S.A. South Dakota Custer Squaw Creek: 5 mi below State Game Lodge. Common in area. 3670 ft. T3S R7E S20 43.7802 -103.3088 NAD 83 1 mi. Y Y Nat. Geog. TOPO! Flowering N RM0274251 N 24 RM 441985 South Dakota RM 346273 Asteraceae Bidens frondosa L. RM-68532 Jim Kreitlow 30 3 9 1982 U.S.A. South Dakota Bennett La Creek National Wildlife Refuge. Marsh and associated habitats; common. 3015 ft. 43.0918° N, 101.5352° W; uncertainty 0.5 mi. T36N R36W S15 SE1/4 43.0918 -101.5352 1 mi. Flowering N N 25 RM 442211 South Dakota RM 520912 Asteraceae Bidens frondosa L. RM-68684 Michael R. Broschart s.n. 3 9 1982 U.S.A. South Dakota Bennett La Creek National Refuge. Marsh and associated habitats. 3015 ft. 43.0918° N, 101.5352° W; uncertainty 0.5 mi. T36N R36W S15 SE1/4 43.0918 -101.5352 1 mi. Flowering N N 26 RM 481282 So Rocky Mts RM 733113 Asteraceae Bidens frondosa L. RM-89405 Dieter H. Wilken 15003 K. Cook 30 8 1989 U.S.A. Colorado Larimer Poudre River, near confluence with Dry Creek; 3 km ESE of the junction of CO Hwy 14 and U.S. Hwy 287. Open sandy soil with Salix and Populus. 1510 ft. 40.5753° N, 105.05° W; uncertainty 1 mi. T7N R68W S18 N1/2 40.5753 -105.05 1 mi. Flowering and Fruiting N N 27 RM 482633 So Rocky Mts RM 63524 Asteraceae Bidens frondosa L. RM-71227 Earl L. Johnston 394A 1909 U.S.A. Colorado Weld Evans. Flowering and Fruiting N N 28 RM 483456 So Rocky Mts RM 81885 Asteraceae Bidens frondosa L. RM-90356 Edwin B. Payson 937 8 9 1915 U.S.A. Colorado Montrose Montrose. Along ditch. 5800 ft. Flowering and Fruiting N N 29 RM 485352 So Rocky Mts RM 61548 Asteraceae Bidens frondosa L. RM-80486 Francis Ramaley 3886 1 10 1907 U.S.A. Colorado Boulder Mouth of Gregory Canyon. Flowering and Fruiting N N 30 RM 489789 So Rocky Mts RM 171187 Asteraceae Bidens frondosa L. RM-72454 George E. Osterhout 6893 12 9 1927 U.S.A. Colorado Larimer Gulch SE of Horsetooth. Along ditch. Flowering N N 31 RM 490244 So Rocky Mts RM 171188 Asteraceae Bidens frondosa L. RM-91562 George E. Osterhout 965 7 9 1896 U.S.A. Colorado Weld New Windsor. Flowering N N 32 RM 494458 So Rocky Mts RM 28340 Asteraceae Bidens frondosa L. RM-73773 Leslie N. Goodding 8209 28 8 1900 U.S.A. Colorado Larimer Waste ground. Flowering and Fruiting N N 33 RM 496972 So Rocky Mts RM 580392 Asteraceae Bidens frondosa L. RM-95175 Ronald C. Wittmann 18458 William A. Weber 7 9 1991 U.S.A. Colorado Baca Carrizo Creek: under bridge above fords. In stream course. T33S R50W S30 Flowering N N 34 RM 53480 Jacobs RM 779059 Asteraceae Bidens frondosa L. RM-12472 Brian F. Jacobs 5012 29 9 2000 U.S.A. New Mexico Sandoval Jemez Mountains: Bandelier National Monument: mouth of Canyon de los Frijoles at White Rock Canyon along the Rio Grande and at Frijoles Spring. Disturbed flats along the river, river edge, and seep. Flowering and Fruiting N N 35 RM 550501 Wood 1996 Asteraceae Bidens frondosa L. RM-103642 Jean Wood 7386 Madilane Perry 10 8 1996 U.S.A. Washington Ferry Western Colville National Forest and Vicinity: Curlew Lake, ca 4 air mi NNE of Republic. Lake and shoreline. 2400 ft. 48.7072° N, 118.6684° W T37N R33E S17 NW1/4; also T38N R33E NW1/4 S28, E1/2 S29; also NE1/4 S32 48.7072 -118.6684 Flowering N N 36 RM 550788 Wood 1996 Asteraceae Bidens frondosa L. RM-103647 Jean Wood 7671 16 8 1996 U.S.A. Washington Stevens [location and coordinates withheld] Small man-made pond. 2300 ft. Flowering and Fruiting N N 37 RM 568007 SE WY 1984 RM 599184 RM0274319 Asteraceae Bidens frondosa L. RM-104287 B. E. Nelson 11629 10 9 1984 U.S.A. Wyoming Niobrara [location and coordinates withheld] Forming large mats of vegetation in stream and marsh. 4600 ft. Flowering and Fruiting N RM0274319 N 38 RM 597770 Dueholm 1978 RM 324054 RM0274280 Asteraceae Bidens frondosa L. RM-106586 Keith H. Dueholm 6168 25 8 1978 U.S.A. Wyoming Campbell Powder River Basin: ca 1 air mi E of Gary Reservoir. Large pond and shaded draws and slopes, plains; muddy seep in draw. 3600 ft. 44.9753° N, 105.19778° W; uncertainty 2 mi. T58N R69W S31; also T57N R69W S6 44.9753 -105.19778 2 mi. Flowering and Fruiting N RM0274280 N 39 RM 639919 SE WY 1993 RM 599183 RM0274323 Asteraceae Bidens frondosa L. RM-108358 B. E. Nelson 28488 17 8 1993 U.S.A. Wyoming Laramie Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along Bear Creek on Marsh or County Road 245-1, ca 3/4 mi W of (upside down V)X Ranch, ca 25.5 air mi ENE of Iron Mountain (Farthing); ca 35 air mi N of Cheyenne. Gravel bars, low stream banks, and in standing or slow moving water. 5400 5480 ft. 41.63378° N, 104.74519° W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO! T19N R66W S11 NW1/4 41.63378 -104.74519 NAD 83 0 mi. N N Nat. Geog. TOPO! Open Ax Ranch TB Flowering and Fruiting N RM0274323 N 40 RM 640038 SE WY 1993 RM 599182 RM0274322 Asteraceae Bidens frondosa L. RM-108359 B. E. Nelson 28605 17 8 1993 U.S.A. Wyoming Goshen Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along Bear Creek ca 1/4 mi above Little Bear Creek on County Road 153, ca 14.3 air mi SE of Chugwater; ca 38.5 air mi SW of Torrington. Meadows and low benches along the stream. 5160 5180 ft. 41.6166° N, 104.6186° W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO! T19N R65W S14 NE1/4 41.6166 -104.6186 NAD 83 0 mi. N N Nat. Geog. TOPO! BEN Flowering N RM0274322 N 41 RM 640662 SE WY 1993 RM 599181 RM0274317 Asteraceae Bidens frondosa L. RM-108391 B. E. Nelson 29223 26 8 1993 U.S.A. Wyoming Converse Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along the North Platte River ca 0.5-0.8 mi above the mouth of Wagon Hound Creek, ca 6.8 air mi S of Douglas. Wet area in old overflow channel and thickets along the edges. 4740 ft. 42.6569° N, 105.3725° W; uncertainty 1 mi. T31N R71W S16 N1/4 42.6569 -105.3725 1 mi. Flowering N RM0274317 N 42 RM 641065 SE WY 1993 RM 599180 RM0274320 Asteraceae Bidens frondosa L. RM-108408 B. E. Nelson 29617 31 8 1993 U.S.A. Wyoming Goshen Southern Powder River Basin/Southeastern Plains: Goshen Hole: along the North Platte River on London Flats, ca 2.2 air mi S of Lingle, ca 9.5 air mi WNW of Torrington. Sand bars, muddy river bank, and low areas in the river bottom. 4140 ft. 42.1072° N, 104.3566° W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO! T25N R62W S30 SW1/4 42.1072 -104.3566 NAD 83 0 mi. N N Nat. Geog. TOPO! BEN Flowering and Fruiting N RM0274320 N 43 RM 641231 SE WY 1993 RM 599179 RM0274321 Asteraceae Bidens frondosa L. RM-108419 B. E. Nelson 29779 27 9 1993 U.S.A. Wyoming Goshen Southern Powder River Basin/Southeastern Plains: Southeastern Plains: off Sheep Creek or County Road 43 ca 3.5-4 air mi ENE of Torrington. Banks of small canal. 4200 4250 ft. 42.0789° N, 104.1049° W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO! T24N R60W S5 SW1/4 42.0789 -104.1049 NAD 83 0 mi. N N Nat. Geog. TOPO! BEN Fruiting N RM0274321 N 44 RM 641407 SE WY 1993 RM 599178 RM0274318 Asteraceae Bidens frondosa L. RM-108432 B. E. Nelson 29953 29 9 1993 U.S.A. Wyoming Niobrara [location and coordinates withheld] Creek bottom. 4120 ft. Fruiting N RM0274318 N 45 RM 644836 SE WY 1994 RM 663905 RM0274304 Asteraceae Bidens frondosa L. RM-108561 B. E. Nelson 33843 Tim Chumley and Robbin Romberg 11 8 1994 U.S.A. Wyoming Platte Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along Chugwater Creek, ca 0.5 air mi N of Bordeaux, ca 9.5 air mi SE of Wheatland. Steep creek bank and sand bars. 4840 ft. 41.9373° N, 104.8377° W T23N R67W S25 NW1/4 41.9373 -104.8377 Flowering N RM0274304 N 46 RM 645373 SE WY 1994 RM 663904 RM0274305 Asteraceae Bidens frondosa L. RM-108577 B. E. Nelson 34336 Tim Chumley 23 8 1994 U.S.A. Wyoming Goshen Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along Rawhide Creek ca 2.3 air mi SW of Tea Kettle Rock and ca 0.5-1 air mi N of the Interstate Canal, ca 7 air mi NE of Lingle, ca 11.3 air mi NNW of Torrington. Stream bank and adjacent low lying areas. 4240 4250 ft. 42.2141° N, 104.2619° W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO! T26N R62W S24 NW1/4 42.2141 -104.2619 NAD 83 0 mi. N N Nat. Geog. TOPO! BEN Flowering and Fruiting N RM0274305 N 47 RM 645547 SE WY 1994 RM 663903 RM0274306 Asteraceae Bidens frondosa L. RM-108584 B. E. Nelson 34509 28 8 1994 U.S.A. Wyoming Goshen Southern Powder River Basin/Southeastern Plains: Goshen Hole: Bump-Sullivan Reservoir, ca 4 air mi S of Yoder; ca 15 air mi SSW of Torrington. At the high water line along the reservoir. 4290 ft. 41.8615° N, 104.3114° W; NAD 83, uncertainty 0.5 mi., Nat. Geog. TOPO! T22N R62W S21 South1/2 41.8615 -104.3114 NAD 83 1 mi. N N Nat. Geog. TOPO! BEN Flowering and Fruiting N RM0274306 N 48 RM 645663 SE WY 1994 RM 663902 RM0274307 Asteraceae Bidens frondosa L. RM-108591 B. E. Nelson 34624 30 8 1994 U.S.A. Wyoming Goshen Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Fort Laramie National Historic Site: along the Laramie River, ca 1.3 air mi SSW of Fort Laramie (town); ca 21 air mi NW of Torrington. Gravelly sand bars and river margin. 4220 ft. 42.2001° N, 104.5334° W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO! T26N R64W S27 NW1/4 42.2001 -104.5334 NAD 83 0 mi. N N Nat. Geog. TOPO! BEN Flowering and Fruiting N RM0274307 N 49 RM 646475 RMHERB1 RM 600979 Asteraceae Bidens frondosa L. RM-108992 Robert D. Dorn 6736 17 9 1995 U.S.A. Wyoming Laramie 3 mi W of Cheyenne. Ditchbank with Populus and Bidens. 6200 ft. 41.1822° N, 104.8958° W T14N R67W S16 N1/2 of W1/2 41.1822 -104.8958 Flowering and Fruiting N N 50 RM 660764 WYNDD RM Asteraceae Bidens frondosa L. RM-58233 Walter Fertig 14404 Jane Struttmann 17 8 1993 U.S.A. Wyoming Platte Southeastern Plains: ca 1.5 mi W of I-25; north edge of Wheatland adj. to Brookie Road. Fallow field dominated by Bromus inermis at edge of grove of Populus deltoides and Elaeagnus angustifolia. 4900 ft. 42.0976° N, 105.0192° W T25N R68W S33 SE1/4 42.0976 -105.0192 N N 51 RM 661071 Marriott 1984 RM 382065 RM0274311 Asteraceae Bidens frondosa L. RM-104297 B. E. Nelson 11740 12 9 1984 U.S.A. Wyoming Crook Black Hills: Bear Lodge Mountains: along Pine Creek, ca 8 air mi NNW of Aladdin; ca 25 air mi NNE of Sundance. Sandbars and stream bottom. 3500 ft. 44.7447° N, 104.245° W; uncertainty 1 mi. T55N R62W S24 44.7447 -104.245 1 mi. N N Flowering and Fruiting N RM0274311 N 52 RM 661093 Marriott 1984 RM 382066 RM0274308 Asteraceae Bidens frondosa L. RM-104297 B. E. Nelson 11762 12 9 1984 U.S.A. Wyoming Crook Black Hills: Bear Lodge Mountains: along Pine Creek, ca 8 air mi NNW of Aladdin; ca 25 air mi NNE of Sundance. In and around a dried pond. 3500 ft. 44.7447° N, 104.245° W; uncertainty 1 mi. T55N R62W S24 44.7447 -104.245 1 mi. N N Flowering and Fruiting N RM0274308 N 53 RM 661393 Marriott 1984 RM 382067 RM0274309 Asteraceae Bidens frondosa L. RM-104319 B. E. Nelson 12060 18 9 1984 U.S.A. Wyoming Crook Black Hills: Keyhole Reservoir, just above the dam, ca 11.8 air mi NE of Moorcroft. Sandy and muddy flats below high water level. 4100 ft. 44.37639° N, 104.7694° W; uncertainty 1 mi. T51N R66W S25 44.37639 -104.7694 1 mi. Flowering and Fruiting N RM0274309 N 54 RM 661446 Marriott 1984 RM 382068 RM0274310 Asteraceae Bidens frondosa L. RM-110008 B. E. Nelson 12113 18 9 1984 U.S.A. Wyoming Crook Black Hills: Houston Creek along I-90, ca 12.5 air mi SW of Sundance. Creek bed. 4300 ft. 44.31806° N, 104.58833° W; uncertainty 1 mi. T50N R64W S18 44.31806 -104.58833 1 mi. Flowering and Fruiting N RM0274310 N 55 RM 662440 WY Black Hills RM 68225 RM0274272 Asteraceae Bidens frondosa L. RM-110088 David Griffiths s.n. 16 8 1897 U.S.A. Wyoming Crook Little Missouri Butte. 4600 5400 ft. 44.6264° N, 104.7661° W; uncertainty 2 mi. T54N R66W S34; also S33; and T53N R66W S3, S4 44.6168 -104.7763 NAD 83 2 mi. Y Y Nat. Geog. TOPO! mapped in the middle of Missouri Buttes Flowering N RM0274272 N 56 RM 663469 Marriott 1982 RM 371924 RM0274271 Asteraceae Bidens frondosa L. RM-105512 Hollis Marriott 1893 5 8 1982 U.S.A. Wyoming Weston [location and coordinates withheld] Disturbed soil near lake. 4400 ft. Flowering N RM0274271 N 57 RM 667535 Marriott 1983 RM 371923 RM0274270 Asteraceae Bidens frondosa L. RM-110661 Hollis Marriott 5981 29 8 1983 U.S.A. Wyoming Crook [location and coordinates withheld] Sagebrush grassland, reservoir, on drying mud. 3500 ft. Flowering and Fruiting N RM0274270 N 58 RM 667624 Marriott 1983 RM 371922 RM0274269 Asteraceae Bidens frondosa L. RM-105603 Hollis Marriott 6067 1 9 1983 U.S.A. Wyoming Crook Black Hills: Keyhole Reservoir, Cottonwood Creek and Dry Cove Campground, ca 11.5 air mi NE of Moorcroft. Drying mud in creekbed. 4100 ft. 44.3619° N, 104.7694° W; uncertainty 1 mi. T51N R66W S34 NE1/4 44.3619 -104.7694 1 mi. Flowering and Fruiting N RM0274269 N 59 RM 781390 Missouri Plateau RM 395032 Asteraceae Bidens frondosa L. RM-26373 Klaus H. Lackschewitz 9471 16 9 1980 U.S.A. Montana Dawson Just above both bridges of the city of Glendive: South bank of the Yellowstone River. 47.1457° N, 104.6836° W; uncertainty 1 mi. 47.1457 -104.6836 1 mi. Much less common than Bidens cernua. Flowering N N 60 RM 781511 Missouri Plateau RM 154268 Asteraceae Bidens frondosa L. RM-126889 O. A. Stevens s.n. 13 9 1932 U.S.A. North Dakota Cass Fargo. River bank. Flowering N N 61 RM 781512 Missouri Plateau RM 68282 Asteraceae Bidens frondosa L. RM-131237 David Griffiths 191 Slosser 15 8 1894 U.S.A. South Dakota Roberts Big Stone Lake. Buds N N 62 RM 781513 Missouri Plateau RM 275445 Asteraceae Bidens frondosa L. RM-133189 Elray S. Nixon 234 26 8 1964 U.S.A. Nebraska Sheridan Metcalf Public Hunting Grounds: 13 mi N of Hay Springs. Along stream among open ridges and Pinus ponderosa forest. 3300 ft. Buds N N 63 RM 891983 Dorn 2016 RM 937786 RM0106939 Asteraceae Bidens frondosa L. RM-448051 Robert D. Dorn 11855 13 9 2016 U.S.A. South Dakota Fall River Cottonwood Reservoir, ca 4 mi W of Hot Springs. Shore of reservoir, with Echinochloa, Mentha. 3900 ft. 43° 26.4' N, 103° 34.2' W; unknown, , Specimen Label 43.44 -103.57 unknown Specimen Label Rays yellow. Flowering and Fruiting N RM0106939 N