Betulaceae GH: 02198592 Alnus incana rugosa (Du Roi) R. T. Clausen USA: New York just west of Dryden, south of Fall Creek R. T. Clausen 8139 1952-4-6
A: 02195333 Betula glandulosa Michaux USA: Michigan 8 miles east of Shingleton R. T. Clausen 8176 1952-6-6
GH: 02193431 Betula populifolia Marshall USA: Michigan [data not captured] R. T. Clausen 8172 1952-6-4
GH: 02193685 Betula pumila Linnaeus USA: South Dakota Black Hills; Belle Fourche River Drainage; P... R. T. Clausen 8222 1952-6-16
GH: 02071442 Carpinus caroliniana virginiana (Marshall) Furlow USA: New York [data not captured] R. T. Clausen 8142 1952-4-27
GH: 02103633 Ostrya virginiana (Miller) K. Koch USA: South Dakota Bottom of Spearfish Canyon R. T. Clausen 8255 1952-6-19
Celastraceae GH: 01855007 Euonymus obovatus Nuttall USA: New York bottom of ravine of Mack Creek, north of She... R. T. Clausen 8167 1952-5-30
Cornaceae GH: 02019316 Cornus stolonifera Michaux USA: North Dakota South crest of Sentinel Buute R. T. Clausen 8206 1952-6-12
Crassulaceae GH: 01990764 Sedum goldmanii (Rose) Moran USA: New York Ithaca: Greenhouse. R. T. Clausen 7522 1952-6-3
GH: 01991545 Sedum lanceolatum Torrey USA: Nebraska on north facing slope, near head of Monroe C... R. T. Clausen 8281 1952-6-24
GH: 01991561 Sedum lanceolatum Torrey USA: South Dakota below cliffs along 85A at Pluma R. T. Clausen 8221 1952-6-16
GH: 01991562 Sedum lanceolatum Torrey USA: South Dakota 1.7 miles southeast of Roubaix R. T. Clausen 8229 1952-6-17
GH: 01991563 Sedum lanceolatum Torrey USA: South Dakota south of Custer R. T. Clausen 8256 1952-6-20
GH: 01991564 Sedum lanceolatum Torrey USA: South Dakota canyon of Whitewood Creek on south side of D... R. T. Clausen 8220 1952-6-16
GH: 01991573 Sedum lanceolatum Torrey USA: South Dakota summit of Terry Peak R. T. Clausen 8263 1952-6-21
GH: 01991574 Sedum lanceolatum Torrey USA: South Dakota canyon of Little Elk Creek R. T. Clausen 8241 1952-6-17
GH: 01991615 Sedum lanceolatum Torrey USA: Wyoming on bank beside highway, northeast exposure, ... R. T. Clausen 8250 1952-6-19
GH: 01991616 Sedum lanceolatum Torrey USA: Wyoming 16 km. northwest of Buckhorn R. T. Clausen 8252 1952-6-19
GH: 01991771 Sedum palmeri S. Watson USA: New York Ithaca: Greenhouse R. T. Clausen 7371 1952-3-15
GH: 01990873 Sedum retusum Hemsley USA: New York Ithaca: Greenhouse. R. T. Clausen 7416 1952-6-20
Cupressaceae GH: 02104029 Juniperus communis Linnaeus USA: Nebraska Pine Ridge Escarpment; Cheyenne River Draina... R. T. Clausen 8289 1952-6-25
GH: 02105198 Juniperus horizontalis Moench USA: North Dakota [data not captured] R. T. Clausen 8197 1952-6-11
GH: 02106295 Juniperus scopulorum Sargent USA: North Dakota [data not captured] R. T. Clausen 8185 1952-6-9
Fabaceae GH: 02064704 Astragalus bisulcatus (Hooker) A. Gray USA: North Dakota south crest of Sentinel Butte, R. T. Clausen 8209 1952-6-12
GH: 02064705 Astragalus bisulcatus (Hooker) A. Gray USA: North Dakota just west of Valley City R. T. Clausen 8182 1952-6-8
GH: 02047641 Astragalus crassicarpus Nuttall USA: Nebraska Cheyenne River Drainage; Monroe Canyon R. T. Clausen 8288 1952-6-24
GH: 02052800 Astragalus lotiflorus Hooker USA: North Dakota On slope east of Marmarth R. T. Clausen 8202 1952-6-11
GH: 02048002 Astragalus plattensis Nuttall USA: North Dakota on north slope of Sentinel Butte R. T. Clausen 8213 1952-6-14
GH: 02048379 Astragalus racemosus Pursh USA: North Dakota about 5 km. east of Marmarth R. T. Clausen 8204 1952-6-11
GH: 02048380 Astragalus racemosus Pursh USA: North Dakota 1.5 km. east of Valley City R. T. Clausen 8181 1952-6-8
GH: 02030556 Astragalus sp. USA: South Dakota Black Hills; southeast of Roubaix R. T. Clausen 8233 1952-6-17
GH: 02030557 Astragalus sp. USA: South Dakota Black Hills; 2 km. southeast of Roubaix R. T. Clausen 8231 1952-6-17
GH: 02030558 Astragalus sp. USA: Nebraska Cheyenne River Drainage; north-facing slope ... R. T. Clausen 8284 1952-6-24
GH: 02030559 Astragalus sp. USA: Nebraska Pine Ridge Escarpment; Cheyenne River Draina... R. T. Clausen 8283 1952-6-24
GH: 02030560 Astragalus sp. USA: South Dakota Black Hills; Belle Fourche River Basin; Chey... R. T. Clausen 8245 1952-6-19
GH: 02030561 Astragalus sp. USA: Wyoming 1.6 km. northwest of Buckhorn R. T. Clausen 8253 1952-6-19
GH: 02048934 Astragalus tenellus Pursh USA: North Dakota south crest of Sentinel Butte R. T. Clausen 8208 1952-6-12
GH: 02048935 Astragalus tenellus Pursh USA: North Dakota north slope of Cedar Canyon east of Medora R. T. Clausen 8187 1952-6-9
GH: 01958151 Hedysarum boreale Nuttall USA: North Dakota south crest of Sentinel Butte R. T. Clausen 8207 1952-6-12
GH: 02150604 Lathyrus sp. USA: South Dakota valley of West Strawberry Creek, 2 miles sou... R. T. Clausen 8224 1952-6-16
GH: 02177790 Lupinus perennis Linnaeus USA: Michigan [data not captured] R. T. Clausen 8170 1952-6-4
GH: 02129312 Lupinus sp. USA: Wyoming 3 miles northeast of Moorcroft.; Great Plain... R. T. Clausen 8244 1952-6-18
GH: 02130024 Medicago sativa Linnaeus USA: North Dakota [data not captured] R. T. Clausen 8219 1952-6-14
GH: 02130422 Melilotus officinalis (Linnaeus) Lamarck USA: North Dakota [data not captured] R. T. Clausen 8211 1952-6-13
GH: 02132208 Oxytropis campestris gracilis (A. Nelson) Barneby USA: South Dakota southeast of Roubaix R. T. Clausen 8232 1952-6-17
GH: 02132897 Oxytropis lambertii Pursh USA: Nebraska Monroe Canyon, Sioux County R. T. Clausen 8286 1952-6-24
GH: 02132940 Oxytropis lambertii Pursh USA: North Dakota [data not captured] R. T. Clausen 8191 1952-6-9
GH: 02132939 Oxytropis lambertii Pursh USA: North Dakota [data not captured] R. T. Clausen 8205 1952-6-11
GH: 02345082 Vicia americana Muhlenberg ex Willdenow USA: North Dakota [data not captured] R. T. Clausen 8189 1952-6-9
GH: 02345130 Vicia americana Muhlenberg ex Willdenow USA: South Dakota valley of West Strawberry Creek 2 miles sout... R. T. Clausen 8223 1952-6-16
Limnanthaceae GH: 01181157 Floerkea proserpinacoides Willdenow USA: New York Valley of Tioughnioga River north of Messeng... R. T. Clausen 8159 1952-5-11
Oleaceae GH: 01849413 Fraxinus pennsylvanica Marshall USA: North Dakota near head of Cedar Canyon, east of Medora, R. T. Clausen 8183 1952-6-9
Papaveraceae GH: 01738416 Corydalis aurea Willdenow USA: South Dakota Black Hills; Belle Fourche River Basin; near... R. T. Clausen 8269 1952-6-21
Pinaceae GH: 00396856 Picea glauca (Moench) Voss USA: South Dakota Black Hills. Belle Fourche River Basin. Vall... R. T. Clausen 8225 1952-6-16
GH: 00399202 Pinus ponderosa P. Lawson & C. Lawson USA: Nebraska Cheyenne River Drainage; Monroe Canyon, nort... R. T. Clausen 8282 1952-6-24
GH: 00399244 Pinus ponderosa P. Lawson & C. Lawson USA: North Dakota just east of Marmarth R. T. Clausen 8198 1952-6-11
Ranunculaceae GH: 01720782 Actaea pachypoda Elliott USA: New York north of Sheldrake, Bottom of ravine of Mack... R. T. Clausen 8169 1952-5-30
GH: 01708933 Aquilegia brevistyla Hooker USA: South Dakota Black Hills; Belle Fourche River Basin; Chey... R. T. Clausen 8247 1952-6-19
GH: 01709282 Aquilegia canadensis Linnaeus USA: South Dakota Black Hills; Belle Fourche River Basin; cany... R. T. Clausen 8238 1952-6-17
Rhamnaceae GH: 01789785 Ceanothus herbaceus Rafinesque USA: New York South crest of Hawley Hill, west of Elmira R. T. Clausen 8301 1952-7-20
Rosaceae GH: 01726507 Amelanchier alnifolia (Nuttall) Nuttall ex M. Roemer USA: North Dakota east facing slope of Cedar Canyon, east of M... R. T. Clausen 8188 1952-6-9
GH: 01726550 Amelanchier alnifolia (Nuttall) Nuttall ex M. Roemer USA: South Dakota Deadwood: Black Hills; 3 miles southeast of ... R. T. Clausen 8228 1952-6-16
GH: 01726552 Amelanchier alnifolia (Nuttall) Nuttall ex M. Roemer USA: South Dakota Black Hills; Belle Fourche River Basin; Rock... R. T. Clausen 8262 1952-6-21
GH: 01727203 Amelanchier arborea (F. Michaux) Fernald USA: New York South crest of Six Mile Ravine above falls o... R. T. Clausen 8143 1952-4-27
GH: 01728981 Amelanchier sanguinea (Pursh) de Candolle USA: Michigan 6.5 km east of Rock River R. T. Clausen 8180 1952-6-6
GH: 01728982 Amelanchier sanguinea (Pursh) de Candolle USA: Michigan St. Ignace R. T. Clausen 8175 1952-6-4
GH: 01730304 Amelanchier sp. USA: Michigan 6.5 km east of Rock River R. T. Clausen 8179 1952-6-6
GH: 01729277 Amelanchier stolonifera Wiegand USA: Michigan south side of Lake Superior along Au Train B... R. T. Clausen 8178 1952-6-6
GH: 01608564 Drymocallis glandulosa (Lindley) Rydberg USA: South Dakota Custer: Black Hills; Cheyenne River Basin; S... R. T. Clausen 8258 1952-6-20
Selaginellaceae GH: 02075286 Selaginella densa Rydberg USA: North Dakota east of Marmarth R. T. Clausen 8200 1952-6-11
