Anacardiaceae GH: 01868442 Rhus trilobata pilosissima Engler USA: Arizona Baboquivari Mts. A. Nelson 11128a 1930-2-24
Asteraceae GH: 01234501 Artemisia spinescens D. C. Eaton USA: Wyoming Mountain View A. Nelson 11324 1930-5-29
GH: 00386891 Baccharis salicifolia (Ruiz & Pavon) Persoon USA: California Palm Springs A. Nelson 11169a 1930-3-1
GH: 00386891 Baccharis viminea de Candolle USA: California Palm Springs A. Nelson 11169a 1930-3-1
GH: 02188336 Carphochaete bigelovii A. Gray USA: Arizona at Weaver's Camp Baboquivari, Mts., A. Nelson 11132a 1930-2-23
Bignoniaceae GH: 02055065 Tecoma stans angustatum Rehder USA: Arizona east of Yuma A. Nelson 11116a 1930-2-26
Boraginaceae GH: 02024306 Cryptantha maritima (Greene) Greene USA: Arizona Salt River at Canyon Lake A. Nelson 11230b 1930-3-20
GH: 02024308 Cryptantha maritima (Greene) Greene USA: Arizona Fortuna Mts., Dublin; SE of Yuma A. Nelson 11136a 1930-2-26
GH: 02026175 Cynoglossum officinale Linnaeus USA: Wyoming Wheatland A. Nelson 10369 1930-6-15
GH: 01997595 Mertensia brevistyla S. Watson USA: Wyoming Hayden Nat'l Forest A. Nelson 11364 1930-6-5
GH: 02058113 Mertensia lanceolata (Pursh) de Candolle USA: Wyoming Plumbago Canyon A. Nelson 11306 1930-6-5
GH: 02059760 Oreocarya caespitosa A. Nelson USA: Wyoming Mountain View A. Nelson 11330 1930-5-29
GH: 02061751 Pectocarya platycarpa (Munz & I. M. Johnston) Munz & I. M. Johnston USA: Arizona Superior A. Nelson 11221a 1930-3-20
GH: 02061821 Pectocarya recurvata I. M. Johnston USA: Arizona hills at Superior A. Nelson 11221b 1930-3-20
Brassicaceae GH: 00944433 Boechera sp. USA: Wyoming Plumbago Canyon A. Nelson 11307 1930-6-10
GH: 01084590 Dimorphocarpa wislizenii (J. Engleman) Rollins USA: Arizona Gila R. bridge, N. of Gila Bend A. Nelson 11195a 1930-3-15
GH: 01538029 Erysimum capitatum (Douglas ex Hooker) Greene USA: New Mexico No. of Hot Springs A. Nelson 11286a 1930-3-26
GH: 01540051 Erysimum repandum Linnaeus USA: Wyoming Wamsutter A. Nelson 11356 1930-6-6
GH: 01548249 Lepidium densiflorum Schrader USA: Wyoming Plumbago Canyon A. Nelson 11322 1930-6-10
GH: 01548812 Lepidium lasiocarpum Nuttall USA: Arizona Canyon Lake A. Nelson 11213a 1930-3-13
GH: 01549669 Lepidium virginicum Linnaeus USA: Arizona Canyon Lake A. Nelson 11213b 1930-3-18
GH: 01575881 Physaria gordonii (A. Gray) O'Kane & Al-Shehbaz USA: Arizona Tucson: [no additional data] A. Nelson 11298a 1930-2-16
GH: 01687710 Physaria montana (A. Gray) Greene USA: Wyoming Plumbago Canyon A. Nelson 11314 1930-6-10
GH: 01691089 Physaria purpurea (A. Gray) O'Kane & Al-Shehbaz USA: Arizona Canyon Lake A. Nelson 11241a 1930-3-18
Caesalpiniaceae GH: 01676983 Hoffmannseggia microphylla Torrey USA: Arizona Fortuna Mts., Dublin A. Nelson 11141 1930-2-26
Capparaceae GH: 00378617 Isomeris arborea Nuttall ex Torrey & A. Gray USA: California No. of Palm Springs A. Nelson 11168a 1930-3-1
GH: 00378617 Peritoma arborea (Nuttall) Iltis USA: California No. of Palm Springs A. Nelson 11168a 1930-3-1
Caryophyllaceae GH: 01713152 Minuartia obtusiloba (Rydberg) House USA: Wyoming University Camp, Medicine Bow Mts. A. Nelson 11561 1930-6-29
Chenopodiaceae GH: 00376292 Atriplex canescens (Pursh) Nuttall USA: California Indio A. Nelson 11152 1930-3-1
GH: 02003805 Atriplex gardneri D. Dietrich USA: Wyoming Mountain View A. Nelson 11349 1930-5-29
GH: 00376413 Atriplex lentiformis (Torrey) S. Watson USA: California Indio A. Nelson 1153a 1930-3-1
Cucurbitaceae GH: 01544350 Marah gilensis (Greene) Greene USA: Arizona Superior A. Nelson 11239a 1930-3-21
Cupressaceae GH: 00356193 Juniperus californica Carr USA: California Buckman Springs A. Nelson 11188a 1930-3-14
GH: 02104742 Juniperus deppeana Steudel USA: Arizona Weaver's Camp, Baboquivari Mts. A. Nelson 11099a 1930-2-19
GH: 02105219 Juniperus horizontalis Moench USA: Wyoming Plumbego Canyon A. Nelson 11368 1930-6-10
GH: 02105816 Juniperus osteosperma (Torrey) Little USA: Wyoming Mountain View A. Nelson 11367 1930-5-29
GH: 02106038 Juniperus scopulorum Sargent USA: Arizona Miami A. Nelson 11275a 1930-3-20
Fabaceae GH: 01963972 Acmispon rigidus (Bentham) Brouillet USA: Arizona Superior A. Nelson 11274a 1930-3-21
GH: 02048697 Astragalus simplicifolius (Nuttall) A. Gray USA: Wyoming Mountain View A. Nelson 11347 1930-5-29
GH: 01885903 Dalea mollis Bentham USA: Arizona Yuma: Dublin A. Nelson 11194a 1930-3-14
GH: 01885897 Dalea mollis Bentham USA: Arizona Yuma: Fortuna Mts., Dublin A. Nelson 11135a 1930-2-26
GH: 01921120 Dalea pulchra Gentry USA: Arizona Baboquivari Mts, Weaver's Camp A. Nelson 11126a 1930-2-22
GH: 01539660 Lupinus sparsiflorus mohavensis Dziek. & D. B. Dunn USA: Arizona Roos Junction, East of Phoenix A. Nelson 11227a 1930-3-18
GH: 02132788 Oxytropis lagopus Nuttall USA: Wyoming Plumbago Canyon A. Nelson 11320 1930-6-5
GH: 02131218 Oxytropis multiceps Torrey & A. Gray USA: Wyoming Colorado-Wyoming line, at Hawk's ranch A. Nelson 11304 1930-6-10
GH: 02131217 Oxytropis multiceps Torrey & A. Gray USA: Wyoming Mountain View A. Nelson 11339 1930-5-29
GH: 02133974 Psorothamnus emoryi (A. Gray) Rydberg USA: Arizona East of Salton Sea A. Nelson 1163a 1930-2-28
GH: 02137943 Trifolium andinum Nuttall USA: Wyoming Mountain View A. Nelson 11341 1930-5-29
Lamiaceae GH: 01554228 Condea emoryi (Torrey) Harley & J. F. B. Pastore USA: Arizona Fortuna Mts., Dublin A. Nelson 11144a 1930-2-26
GH: 01700324 Teucrium depressum Small USA: Arizona North of Gila Bend A. Nelson 11204a 1930-3-15
Loranthaceae GH: 00355091 Phoradendron bolleanum (Seemann) Eichler USA: California Beckman Springs A. Nelson 11187a 1930-3-14
Malvaceae GH: 02070709 Abutilon abutiloides (Jacquin) Garcke ex Britton & Wilson USA: Arizona Strafford-Duncan road A. Nelson 11296a 1930-3-21
Mimosaceae GH: 01992395 Prosopis velutina Wooton USA: Arizona Baboquivari Mts. A. Nelson 11115a 1930-2-21
Nyctaginaceae GH: 01642690 Abronia villosa S. Watson USA: Arizona Fortuna Mts., Dublin A. Nelson 11155a 1930-2-26
GH: 01642979 Allionia incarnata villosa (Standley) Munz USA: Arizona Baboquivari Mts. A. Nelson 11134a 1930-2-23
Papaveraceae GH: 01857000 Eschscholzia californica mexicana (Greene) C. Clark USA: Arizona Canyon Lake A. Nelson 11236a 1930-3-19
Pinaceae GH: 00398612 Pinus edulis Engelmann USA: Colorado Owl Canyon, Northern Colorado A. Nelson 1930-3-26
Plantaginaceae GH: 01803408 Plantago ovata Forsskål USA: California [data not captured] A. Nelson 11185a 1930-3-14
Poaceae GH: 00341041 Aristida californica Thurber ex Bolander USA: California Yuma-El Centro, California A. Nelson 11157a 1930-2-27
Polemoniaceae GH: 01574364 Phlox hoodii canescens (Torrey & A. Gray) Wherry USA: Wyoming Mountain View A. Nelson 11335 1930-5-29
GH: 01574785 Phlox muscoides Nuttall USA: Wyoming Mountain View A. Nelson 11336 1930-5-29
Polygonaceae GH: 01618619 Eriogonum caespitosum Nuttall USA: Wyoming Mountain View A. Nelson 11351 1930-5-29
GH: 01966972 Eriogonum thomasii Torrey USA: California San Diego: [data not captured] A. Nelson 11180-2 1930-3-13
Primulaceae GH: 01922036 Dodecatheon conjugens Greene USA: Wyoming Plumbago Canyon A. Nelson 11318 1930-6-10
Ranunculaceae GH: 01665556 Ranunculus jovis A. Nelson USA: Wyoming Limestone Station, Hayden Forest A. Nelson 11357 1930-6-5
Rhamnaceae GH: 01789559 Ceanothus greggii A. Gray USA: Arizona Miami A. Nelson 1930-3-20
GH: 00425628 Ceanothus verrucosus Nuttall USA: California near Delmar A. Nelson 11173a 1930-3-13
Rosaceae GH: 01729655 Amelanchier utahensis Koehne USA: Wyoming Mountain View A. Nelson 11344 1930-5-29
GH: 01587871 Cercocarpus montanus paucidentatus (S. Watson) F. L. Martin USA: New Mexico Hillsboro A. Nelson 11284a 1930-3-21
GH: 01759056 Crataegus chrysocarpa Ashe USA: Wyoming Colorado-Wyoming line, at Hawk's Ranch A. Nelson 11305 1930-6-10
Rubiaceae GH: 02139297 Galium stellatum Kellogg USA: Arizona Canyon Lake A. Nelson 11235a 1930-3-19
Salicaceae GH: 00382224 Populus fremontii S. Watson USA: California Palm springs A. Nelson 11170a 1930-3-1
Selaginellaceae GH: 02075174 Selaginella arizonica Maxon USA: Arizona Salt River valley, Canyon Lake A. Nelson 11217a 1930-3-20
Solanaceae GH: 00939465 Lycium macrodon A. Gray USA: Arizona Roos Jc. East of Mesa A. Nelson 11206a 1930-3-18
GH: 01563145 Nicotiana obtusifolia Mertens & Galeotti USA: Arizona Canyon Lake, Salt River A. Nelson 11219a 1930-3-20
GH: 01563192 Nicotiana obtusifolia Mertens & Galeotti USA: New Mexico Hillsboro A. Nelson 11293a 1930-3-21
GH: 01542974 Solanum interius Rydberg USA: Arizona Canyon Lake A. Nelson 11220a 1930-3-19
Tamaricaceae GH: 01942257 Tamarix gallica Linnaeus USA: Arizona Gila R. bridge, N. of Gila Bend A. Nelson 11202a 1930-3-13
Zygophyllaceae GH: 01787747 Fagonia californica Bentham USA: Arizona East of Yuma A. Nelson 1930-2-26
GH: 01787959 Larrea tridentata (de Candolle) Coville USA: Arizona Fortuna Mts., Dublin A. Nelson 1930-2-26
GH: 01787960 Larrea tridentata (de Candolle) Coville USA: Arizona southwest Benson A. Nelson 1930-2-10