Agavaceae GH: 00357659 Yucca mohavensis Sargent USA: California Lave hills, 10 miles south of Needles, Calif... A. Nelson & R. E. Nelson 3374 1939-4-1
GH: 00357659 Yucca schidigera Roemer USA: California Lave hills, 10 miles south of Needles, Calif... A. Nelson & R. E. Nelson 3374 1939-4-1
Asclepiadaceae GH: 00993821 Asclepias nummularia Torrey USA: Arizona on the Patagonia road about 10 miles east of... A. Nelson & R. E. Nelson 1571 1935-4-19
Asteraceae GH: 00414280 Ambrosia monogyra (Torrey & A. Gray ex A. Gray) Stother & B. G. Baldwin USA: California Near Shoshone A. Nelson & R. E. Nelson 3390 1939-4-2
GH: 00414345 Ambrosia salsola pentalepis (Rydberg) Stother & B. G. Baldwin USA: California Palm Springs A. Nelson & R. E. Nelson 3220 1939-3-22
GH: 00988086 Artemisia frigida Willdenow Canada: Alberta Jasper, near Lake Cavell A. Nelson & R. E. Nelson 4800 1941-8-27
GH: 01234021 Artemisia michauxiana Besser Canada: Alberta Columbia Icefield A. Nelson & R. E. Nelson 4891
GH: 01234020 Artemisia michauxiana Besser Canada: Alberta Waterton Lake A. Nelson & R. E. Nelson 4731 1941-8-15
GH: 02214581 Baccharis salicifolia (Ruiz & Pavon) Persoon USA: Arizona Gila River bed, near Casa Grande Ruins A. Nelson & R. E. Nelson 1665 1935-4-26
GH: 00414444 Encelia farinosa A. Gray ex Torrey USA: California In Titus Canyon, north end of Death Valley A. Nelson & R. E. Nelson 3410 1939-4-4
GH: 00414483 Encelia frutescens (A. Gray) A. Gray USA: California Near Fish Springs on Salton Sea A. Nelson & R. E. Nelson 3290 1939-3-27
GH: 00008220 Gaillardia aristata Pursh Canada: Alberta Near Lake Edith Cavell, Jasper National Park A. Nelson & R. E. Nelson 4808 1941-8-28
GH: 00008507 Gutierrezia polyantha A. Nelson USA: Arizona Tucson: near Tucson on the Florence road A. Nelson & R. E. Nelson 1638 1935-4-26
GH: 00008507 Gutierrezia serotina Greene USA: Arizona Tucson: near Tucson on the Florence road A. Nelson & R. E. Nelson 1638 1935-4-26
GH: 00414345 Hymenoclea hemidioica A. Nelson USA: California Palm Springs A. Nelson & R. E. Nelson 3220 1939-3-22
GH: 00414280 Hymenoclea monogyra Torrey & A. Gray ex A. Gray USA: California Near Shoshone A. Nelson & R. E. Nelson 3390 1939-4-2
Balsaminaceae GH: 00273336 Impatiens noli-tangere Linnaeus USA: Alaska About the hotel and on the river bank, Curry... A. Nelson & R. E. Nelson 4163 1939-8-17
GH: 00273336 Impatiens occidentalis Rydberg USA: Alaska About the hotel and on the river bank, Curry... A. Nelson & R. E. Nelson 4163 1939-8-17
Boraginaceae GH: 02027782 Hackelia patens (Nuttall) I. M. Johnston USA: Wyoming Jenny Lake at foot of the Tetons A. Nelson & R. E. Nelson 1060 1934-6-9
Brassicaceae GH: 01098992 Cardamine concatenata (Michaux) O. Schwarz USA: Oklahoma 1/4 mi. nw. of Elden, Jct. of U. S. 62 and O... A. Nelson & R. E. Nelson 5477 1946-4-1
GH: 01540893 Isatis tinctoria Linnaeus USA: Idaho Southeastern Idaho A. Nelson & R. E. Nelson 2930 1938-8-6
Chenopodiaceae GH: 00376324 Atriplex confertifolia (Torrey & Fremont) Watson USA: California near Shoshone A. Nelson & R. E. Nelson 3391 1939-4-2
Cupressaceae GH: 02104753 Juniperus deppeana Steudel USA: Arizona Mountains between Superior and Miami. A. Nelson & R. E. Nelson 1898 1935-5-12
Juncaceae GH: 02401143 Juncus ensifolius Wikström USA: Wyoming Mammoth Hot Springs A. Nelson & R. E. Nelson 6050 1899-7-21
Lamiaceae GH: 00403221 Salvia apiana Jepson USA: California Roadsides, at the foot of Banner Grade, high... A. Nelson & R. E. Nelson 3283 1939-3-27
GH: 00403362 Salvia funerea M. E. Jones USA: California In Titus canyon, north end of Death Valley A. Nelson & R. E. Nelson 3398 1939-4-4
Onagraceae GH: 01675915 Chamerion latifolium (Linnaeus) Holub USA: Alaska Polychrome Pass. A. Nelson & R. E. Nelson 3798 1939-7-14
GH: 01778333 Gaura villosa villosa Torrey USA: Oklahoma about 4 miles south of Rosston, along Highwa... A. Nelson & R. E. Nelson 5319
Polemoniaceae GH: 01571783 Phlox divaricata Linnaeus USA: Oklahoma about 1/4 mi. nw. of Elden, Jct. of U. S. 62... A. Nelson & R. E. Nelson 5480 1946-4-1
Polytrichaceae FH: 00850942 Pogonatum urnigerum (Hedwig) P. Beauvois USA: Alaska [data not captured] A. Nelson & R. E. Nelson 4168 1939-8-17
FH: 00918726 Polytrichum juniperinum Hedwig USA: Alaska [data not captured] A. Nelson & R. E. Nelson 4191 1939-8-18
Ranunculaceae GH: 01720486 Aconitum delphinifolium de Candolle USA: Alaska Rock slides near Summit back of Camp Eilson ... A. Nelson & R. E. Nelson 4112 1939-8-11
GH: 01720486 Aconitum nivatum A. Nelson USA: Alaska Rock slides near Summit back of Camp Eilson ... A. Nelson & R. E. Nelson 4112 1939-8-11
Scrophulariaceae GH: 01841229 Erythranthe cordata (Greene) G. L. Nesom USA: Arizona Foothills of the Santa Rita Mountains A. Nelson & R. E. Nelson 1398 1935-4-6
Selaginellaceae GH: 02075315 Selaginella densa scopulorum (Maxon) R. M. Tryon USA: Colorado Fall River Pass, Rocky Mt. Nat. Park A. Nelson & R. E. Nelson 5782a 1947-8-21
Solanaceae GH: 01542073 Quincula lobata (Torrey) Rafinesque USA: New Mexico near the town of Capulin A. Nelson & R. E. Nelson 4697 1941-6-17
