Apocynaceae GH: 02179364 Apocynum androsaemifolium Linnaeus USA: Idaho Priest Lake A. Nelson & R. A. Nelson 3037 1938-8-21
Asteraceae GH: 02217377 Acamptopappus sphaerocephalus (Harvey & A. Gray) A. Gray USA: Utah between Anderson's Junction and Springdale A. Nelson & R. A. Nelson 2713 1938-5-17
GH: 00988917 Artemisia ludoviciana incompta (Nuttall) D. D. Keck USA: Idaho Dry Diggings; Seven Devils Mountains; Nez Pe... A. Nelson & R. A. Nelson 3023 1938-8-10
GH: 02207016 Ericameria nauseosa speciosa (Nuttall) G. L. Nesom & G. I. Baird USA: Wyoming Along Cook City Road, near Pebble Creek A. Nelson & R. A. Nelson 3173 1938-9-7
GH: 02206576 Erigeron concinnus Torrey USA: Utah Anderson's Ranch near Pintura A. Nelson & R. A. Nelson 2680 1938-5-16
GH: 02351132 Erigeron pumilis Nuttall USA: Utah Anderson's Ranch A. Nelson & R. A. Nelson 2671 1938-5-16
GH: 02587190 Grindelia hirsutula Hooker & Arnott Canada: Alberta [data not captured] A. Nelson & R. A. Nelson 3119 1938-8-31
GH: 02204671 Heterotheca villosa minor (Hooker) Semple USA: Montana [data not captured] A. Nelson & R. A. Nelson 3178 1938-9-7
GH: 01831513 Hieracium cynoglossoides Arvet-Touvet USA: Idaho [data not captured] A. Nelson & R. A. Nelson 3024 1938-8-10
GH: 01835765 Malacothrix sonchoides (Nuttall) Torrey & A. Gray USA: Arizona Painted Desert between Cameron and the Navaj... A. Nelson & R. A. Nelson 2857 1938-5-25
Betulaceae GH: 02197135 Alnus rubra Bongard USA: Idaho Priest Lake A. Nelson & R. A. Nelson 3042 1938-8-21
Boraginaceae GH: 02023284 Cryptantha crassisepala (Torrey & A. Gray) Greene USA: Arizona Painted Desert between Cameron and the Navaj... A. Nelson & R. A. Nelson 2852 1938-5-25
GH: 02023704 Cryptantha gracilis Osterhout USA: Arizona near Powell Memorial, Grand Canyon National ... A. Nelson & R. A. Nelson 2829 1938-5-24
GH: 02058360 Mertensia macdougalii A. Heller USA: Arizona along Desert View Drive, Grand Canyon Nation... A. Nelson & R. A. Nelson 2837 1938-5-25
GH: 02060197 Oreocarya confertiflora Greene USA: Utah Zion National Park A. Nelson & R. A. Nelson 2688 1938-5-17
Brassicaceae GH: 01155082 Boechera perennans (S. Watson) W. A. Weber USA: Arizona Yaki Point, South Rim Grand Canyon National ... A. Nelson & R. A. Nelson 2793 1938-5-22
GH: 01155083 Boechera perennans (S. Watson) W. A. Weber USA: Arizona South Rim, Grand Canyon National Park A. Nelson & R. A. Nelson 2791 1938-5-22
GH: 00960892 Boechera retrofracta (Graham) A. Löve & D. Löve USA: Idaho Dry Diggings Lookout, Seven Devils Mountains... A. Nelson & R. A. Nelson 3018 1938-8-10
GH: 00948910 Boechera stricta (Graham) Al-Shehbaz USA: Montana Bear Tooth Lake Bear Tooth Mountain Highway A. Nelson & R. A. Nelson 3177 1938-8-8
GH: 01548774 Lepidium fremontii S. Watson USA: Utah Fifteen miles south of Anderson's Ranch Sout... A. Nelson & R. A. Nelson 2731 1938-5-18
GH: 01549030 Lepidium montanum Nuttall USA: Arizona Painted Desert between Cameron and the Navaj... A. Nelson & R. A. Nelson 2872 1938-5-25
GH: 01550616 Noccaea fendleri glauca (A. Nelson) Al-Shehbz & M. Koch USA: Arizona the Kaibab Forest between Jacob Lake and the... A. Nelson & R. A. Nelson 2885 1938-5-26
GH: 01716576 Stanleya albescens M. E. Jones USA: Arizona Bad lands in the Painted Desert between Came... A. Nelson & R. A. Nelson 2876 1938-5-25
GH: 01716756 Stanleya pinnata (Pursh) Britton USA: Utah Between Anderson's Junction and Springdale A. Nelson & R. A. Nelson 2712 1938-5-17
GH: 01716785 Stanleya pinnata (Pursh) Britton USA: Wyoming Laramie Plains A. Nelson & R. A. Nelson 3195 1938-7-23
GH: 01716863 Stanleya tomentosa Parry USA: Wyoming On Owl Creek; 25 miles west of Thermopolis A. Nelson & R. A. Nelson O. A. Bea... 1938-7-12
GH: 01736178 Streptanthus cordatus Nuttall ex Torrey & A. Gray USA: Arizona Kaibab Trail Grand Canyon National Park A. Nelson & R. A. Nelson 2804 1938-5-23
Chenopodiaceae GH: 00376409 Atriplex hymenelytra (Torrey) S. Watson USA: California Near Shoshone A. Nelson & R. A. Nelson 3393 1938-4-2
Cornaceae GH: 02019039 Cornus stolonifera Michaux USA: Idaho Priest Lake A. Nelson & R. A. Nelson 3041 1938-8-21
Cupressaceae GH: 02104556 Juniperus communis montana Aiton USA: Idaho [data not captured] A. Nelson & R. A. Nelson 2961 1938-8-10
Elaeagnaceae GH: 01576187 Elaeagnus commutata Bernhardi ex Rydberg Canada: Alberta North of Banff, Banff Highway A. Nelson & R. A. Nelson 3104 1938-8-27
GH: 01577048 Shepherdia rotundifolia Parry USA: Utah Zion National Park A. Nelson & R. A. Nelson 2685 1938-5-17
Ericaceae GH: 01117583 Arctostaphylos patula Greene USA: Utah Bryce Canyon National Park A. Nelson & R. A. Nelson 2912 1938-5-28
GH: 01536920 Arctous rubra (Rehder & Wilson) Nakai Canada: British Columbia Yoho Valley A. Nelson & R. A. Nelson 3064 1938-8-24
GH: 01562999 Empetrum nigrum Linnaeus Canada: Yukon Territory about Lake Louise and in the Yoho Valley A. Nelson & R. A. Nelson 3061 1938-8-24
GH: 01718510 Menziesia ferruginea Smith Canada: British Columbia Yoho Valley A. Nelson & R. A. Nelson 1938-8-24
GH: 01718714 Menziesia glabella A. Gray USA: Idaho Dry Diggings Camp; Seven Devils Mountains; N... A. Nelson & R. A. Nelson 1938-8-10
GH: 01683167 Phyllodoce empetriformis (Smith) D. Don USA: Idaho [data not captured] A. Nelson & R. A. Nelson 2994 1938-8-10
Fabaceae GH: 01963901 Acmispon oroboides (Kunth) Brouillet USA: Utah Zion National Park A. Nelson & R. A. Nelson 2699 1938-5-17
GH: 02064763 Astragalus bisulcatus haydenianus (A. Gray) Barneby USA: Utah Along Highway 89, north of Glendale A. Nelson & R. A. Nelson 2897 1938-5-27
GH: 02047152 Astragalus canadensis Linnaeus USA: Wyoming Laramie Plains A. Nelson & R. A. Nelson 3197 1938-7-23
GH: 02047524 Astragalus convallarius Greene USA: Wyoming Hayden National Forest A. Nelson & R. A. Nelson 3187 1938-7-18
GH: 02044437 Astragalus flavus Nuttall USA: Arizona near reservoir Desert View Drive, Grand Cany... A. Nelson & R. A. Nelson 2833 1938-5-25
GH: 02044451 Astragalus flavus Nuttall USA: Wyoming Highway 30. Near Utah-Wyoming State Line A. Nelson & R. A. Nelson 2917 1938-5-29
GH: 02044477 Astragalus flavus candicans A. Gray USA: Utah Between Anderson's Junction and Springdale A. Nelson & R. A. Nelson 2711 1938-5-17
GH: 02052303 Astragalus layneae Greene USA: Arizona About half way between Boulder Dam and Kingm... A. Nelson & R. A. Nelson 2758 1938-5-19
GH: 02052342 Astragalus lentiginosus Douglas ex Hooker USA: Arizona About half way between Boulder Dam and Kingm... A. Nelson & R. A. Nelson 2742 1938-5-19
GH: 02052343 Astragalus lentiginosus Douglas ex Hooker USA: Arizona About half way between Boulder Dam and Kingm... A. Nelson & R. A. Nelson 2741 1938-5-19
GH: 02052415 Astragalus lentiginosus araneosus (E. Sheldon) Barneby USA: Utah Bryce Junction and Manti A. Nelson & R. A. Nelson 2915 1938-5-28
GH: 02052530 Astragalus lentiginosus palans (M. E. Jones) M. E. Jones USA: Arizona Painted Desert Between Cameron and the Navaj... A. Nelson & R. A. Nelson 2858 1938-5-25
GH: 02052574 Astragalus lentiginosus salinus (Howell) Barneby USA: Utah Anderson's ranch near Pintura A. Nelson & R. A. Nelson 2676 1938-5-17
GH: 02048105 Astragalus praelongus E. Sheldon USA: Utah Fifteen miles south of Anderson's Ranch Sout... A. Nelson & R. A. Nelson 2725 1938-5-18
GH: 02048108 Astragalus praelongus E. Sheldon USA: Utah Roadside at Springdale and just inside Zion ... A. Nelson & R. A. Nelson 2686 1938-5-17
GH: 02030435 Astragalus wootonii E. Sheldon USA: Arizona Borrow pit east of Kingman A. Nelson & R. A. Nelson 2779 1938-5-20
GH: 02149307 Lathyrus leucanthus Rydberg USA: Wyoming Brush Creek A. Nelson & R. A. Nelson 3186 1938-7-11
GH: 02132171 Oxytropis campestris gracilis (A. Nelson) Barneby Canada: Alberta [data not captured] A. Nelson & R. A. Nelson 3100 1938-8-27
GH: 02132561 Oxytropis deflexa (Pallas) de Candolle Canada: Alberta [data not captured] A. Nelson & R. A. Nelson 3098 1938-8-27
GH: 02345207 Vicia americana Muhlenberg ex Willdenow USA: Wyoming Brush Creek A. Nelson & R. A. Nelson 3185 1938-7-11
Gentianaceae GH: 02069984 Gentiana affinis Grisebach USA: Idaho Central Idaho near White Bird Hill A. Nelson & R. A. Nelson 2999 1938-8-15
GH: 02072400 Gentiana calycosa Grisebach USA: Idaho Near Burgdorf Salmon River Mountains A. Nelson & R. A. Nelson 2942 1938-8-9
Iridaceae GH: 01750092 Sisyrinchium montanum Greene USA: Wyoming Laramie River A. Nelson & R. A. Nelson 3192 1938-7-23
Juncaceae GH: 02398188 Juncus saximontanus A. Nelson Canada: [data not captured] A. Nelson & R. A. Nelson 3091 1938-8-27
Lamiaceae GH: 01600422 Molucella laevis Linnaeus USA: Utah twelve miles south of Anderson's Ranch, sout... A. Nelson & R. A. Nelson 2738 1938-5-18
GH: 01598782 Poliomintha incana (Torrey) A. Gray USA: Arizona Painted Desert between Cameron and the Navaj... A. Nelson & R. A. Nelson 2871 1938-5-25
GH: 01596926 Salvia dorrii (Kellogg) Abrams USA: Arizona On the Hermit Shales, Kaibab Trail Grand Can... A. Nelson & R. A. Nelson 2795 1938-5-23
Malvaceae GH: 02201403 Iliamna rivularis (Douglas) Greene Canada: Alberta near Watertown Lakes A. Nelson & R. A. Nelson 3112 1938-8-31
GH: 02201475 Iliamna rivularis (Douglas) Greene USA: Wyoming Oak Ridge Hayden National Forest A. Nelson & R. A. Nelson 3191 1938-7-18
GH: 02201417 Iliamna rivularis (Douglas) Greene USA: Idaho Near Payette Lake A. Nelson & R. A. Nelson 2997 1938-8-15
GH: 02198102 Sphaeralcea parvifolia A. Nelson USA: Arizona Painted Desert between Cameron and the Navaj... A. Nelson & R. A. Nelson 2875 1938-5-25
Nyctaginaceae GH: 01642335 Abronia elliptica A. Nelson USA: Arizona Painted Desert between Cameron and the Navaj... A. Nelson & R. A. Nelson 2865 1938-5-25
Oleaceae GH: 01848231 Fraxinus anomala Torrey ex S. Watson USA: Utah Zion National Park A. Nelson & R. A. Nelson 1938-5-17
Onagraceae GH: 01645303 Oenothera caespitosa Nuttall USA: Wyoming Red Desert A. Nelson & R. A. Nelson 2919 1938-5-29
GH: 01645425 Oenothera caespitosa marginata (Nuttall ex Hooker & Arnott) Munz USA: Utah Zion National Park A. Nelson & R. A. Nelson 2698 1938-5-17
GH: 01645426 Oenothera caespitosa marginata (Nuttall ex Hooker & Arnott) Munz USA: Utah between Zion Junction and Zion National Park A. Nelson & R. A. Nelson 2687 1938-5-17
GH: 01643193 Oenothera pallida Lindley USA: Utah Zion National Park A. Nelson & R. A. Nelson 2689 1938-5-17
Orobanchaceae GH: 01877240 Castilleja integra A. Gray USA: Arizona On top of the "Red Wall"; Kaibab Trail; Gran... A. Nelson & R. A. Nelson 2809 1938-5-23
GH: 01878445 Castilleja occidentalis Torrey USA: Montana Between Logan Pass And Hidden Lake Glacier N... A. Nelson & R. A. Nelson 3157 1938-9-4
Papaveraceae GH: 01738475 Corydalis aurea occidentalis (Engelmann ex A. Gray) Ownbey USA: Arizona Rowe's Well near the Grand Canyon A. Nelson & R. A. Nelson 2786 1938-5-21
Plantaginaceae GH: 01998259 Chionophila tweedyi (W. M. Canby & J. N. Rose) L. F. Henderson USA: Idaho [data not captured] A. Nelson & R. A. Nelson 2993 1938-8-10
GH: 02002211 Penstemon arenicola A. Nelson USA: Wyoming along highway from Fort Bridger to Rawlins A. Nelson & R. A. Nelson 2918 1938-5-29
GH: 02118602 Penstemon cyananthus Hooker USA: Utah Roadbanks between Orderville and Glendale Hi... A. Nelson & R. A. Nelson 2900 1938-5-27
GH: 02119262 Penstemon eatonii undosus M. E. Jones USA: Arizona On the grade between Desert View and Cameron... A. Nelson & R. A. Nelson 2836 1938-5-25
GH: 02119277 Penstemon eatonii undosus M. E. Jones USA: Utah Zion National Park A. Nelson & R. A. Nelson 2707 1938-5-17
GH: 02119314 Penstemon ellipticus Coulter & Fisher USA: Montana [data not captured] A. Nelson & R. A. Nelson 3132 1938-9-3
GH: 02119421 Penstemon euglaucus English USA: Idaho [data not captured] A. Nelson & R. A. Nelson 2979 1938-8-10
GH: 02119663 Penstemon fruticosus serratus (D. D. Keck) Cronquist USA: Idaho [data not captured] A. Nelson & R. A. Nelson 2964 1938-8-10
GH: 02119850 Penstemon globosus (Piper) Pennell & D. D. Keck USA: Idaho [data not captured] A. Nelson & R. A. Nelson 2992 1938-8-10
GH: 02120516 Penstemon humilis obtusifolius (Pennell) Reveal USA: Utah Zion National Park A. Nelson & R. A. Nelson 2706 1938-5-17
GH: 02120812 Penstemon laricifolius exilifolius (A. Nelson) D. D. Keck USA: Wyoming Laramie Plains A. Nelson & R. A. Nelson 3196 1938-7-23
GH: 02120952 Penstemon linarioides A. Gray USA: Utah north of Glendale Highway 89 A. Nelson & R. A. Nelson 28998 1938-5-27
GH: 02122016 Penstemon pseudospectabilis connatifolius (A. Nelson) C. C. Freeman USA: Arizona Roadside borrow pit East of Kingman A. Nelson & R. A. Nelson 2777 1938-5-20
GH: 02122353 Penstemon rydbergii aggregatus (Pennell) N. H. Holmgren USA: Idaho [data not captured] A. Nelson & R. A. Nelson 2935 1938-8-8
GH: 01801638 Penstemon sp. USA: Montana [data not captured] A. Nelson & R. A. Nelson 3147 1938-9-3
GH: 01801165 Penstemon utahensis Eastwood USA: Utah Zion National Park A. Nelson & R. A. Nelson 2902 1938-5-27
GH: 01801174 Penstemon venustus Douglas USA: Idaho [data not captured] A. Nelson & R. A. Nelson 2981 1938-8-10
Polemoniaceae GH: 01105703 Leptosiphon nuttallii (A. Gray) J. M. Porter & L. A. Johnson USA: Utah Zion Canyon Zion National Park A. Nelson & R. A. Nelson 2701 1938-5-17
GH: 01571187 Phlox austromontana Coville USA: Arizona Rowe's Well Near the Grand Canyon A. Nelson & R. A. Nelson 2784 1938-5-21
GH: 01571226 Phlox austromontana Coville USA: Utah near Cedar City A. Nelson & R. A. Nelson 2674 1938-5-17
GH: 01571227 Phlox austromontana Coville USA: Utah Highway 89 Between Glendale and Hatch A. Nelson & R. A. Nelson 2894 1938-5-27
GH: 01574519 Phlox longifolia compacta (Brand) Wherry USA: Arizona at Rowe's Well near the Grand Canyon A. Nelson & R. A. Nelson 2789 1938-5-21
GH: 01574520 Phlox longifolia compacta (Brand) Wherry USA: Arizona Near Williams A. Nelson & R. A. Nelson 2771 1938-5-20
GH: 01574743 Phlox multiflora A. Nelson USA: Wyoming Highway 30. Near Utah-Wyoming State Line A. Nelson & R. A. Nelson 2921 1938-5-29
GH: 01686951 Phlox woodhousei (A. Gray) E. E. Nelson USA: Arizona near Peach Springs Between Kingman and the G... A. Nelson & R. A. Nelson 2767 1938-5-20
Polygonaceae GH: 02346794 Bistorta vivipara (Linnaeus) Gray Canada: Alberta [data not captured] A. Nelson & R. A. Nelson 3084 1938-8-27
GH: 01652903 Eriogonum heracleoides Nuttall USA: Idaho Bear Pete Ridge Salmon River Mountains A. Nelson & R. A. Nelson 2955 1938-8-13
Ranunculaceae GH: 01720251 Aconitum columbianum Nuttall USA: Idaho Near Burgdorf, Salmon River Mountains A. Nelson & R. A. Nelson 2932 1938-8-8
GH: 01660239 Delphinium scaposum Greene USA: Arizona Cedar Ridge between Desert View and Cameron A. Nelson & R. A. Nelson 2874 1938-5-25
Rosaceae GH: 01729357 Amelanchier utahensis Koehne USA: Arizona Foothills between House Rock and Jacob Lake A. Nelson & R. A. Nelson 2877 1938-5-25
GH: 01729370 Amelanchier utahensis Koehne USA: Arizona South Rim, near El Tovar Grand Canyon Nation... A. Nelson & R. A. Nelson 2825 1938-5-24
GH: 01729599 Amelanchier utahensis Koehne USA: Utah Along Highway 89 between Glendale and Hatch A. Nelson & R. A. Nelson 2890 1938-5-27
GH: 00994186 Chamaebatiaria millefolium (Torrey) Maximowicz USA: Arizona South Rim Grand Canyon National Park A. Nelson & R. A. Nelson 2830 1938-5-24
GH: 01587954 Coleogyne ramosissima Torrey USA: Arizona Painted Desert between Cameron and the Navaj... A. Nelson & R. A. Nelson 2864 1938-5-25
GH: 01647499 Crataegus rivularis Nuttall ex Torrey & A. Gray USA: Utah between Manti and Springvale A. Nelson & R. A. Nelson 2913 1938-5-28
GH: 01588991 Fallugia paradoxa (D. Don) Endlicher USA: Arizona Beaver Dam Mountains A. Nelson & R. A. Nelson 2727 1938-5-18
GH: 01606454 Fragaria vesca americana (Porter) Staudt USA: Idaho Burgdorf Salmon River Mountains A. Nelson & R. A. Nelson 2939 1938-8-9
GH: 01556373 Purshia stansburiana (Torrey) Henrickson USA: Arizona Beaver Dam Mountains A. Nelson & R. A. Nelson 2728 1938-5-18
Rutaceae GH: 00044167 Ptelea glabriformis A. Nelson USA: Arizona Kaibab Trail, Grand Canyon National Park A. Nelson & R. A. Nelson 2798 1938-5-23
GH: 01584555 Thamnosma montana Torrey & Fremont USA: Arizona In the Yucca Forest Beaver Dam Mountains A. Nelson & R. A. Nelson 2729 1938-5-18
Saxifragaceae GH: 01153716 Lithophragma tenellum Nuttall USA: Arizona along Desert View Drive, Grand Canyon Nation... A. Nelson & R. A. Nelson 2841 1938-5-25
GH: 01886800 Ribes lacustre parvulum A. Gray Canada: Alberta Banff: at Moraine Lake, Banff National Park A. Nelson & R. A. Nelson 3074 1938-8-25
GH: 01616765 Saxifraga aizoides Linnaeus Canada: Alberta about Bow Lake; Banff-Jasper Highway A. Nelson & R. A. Nelson 3085 1938-8-27
GH: 01619215 Saxifraga bronchialis austromontana (Wiegand) M. Peck Canada: Alberta Moraine Lake, Valley of the Ten Peaks A. Nelson & R. A. Nelson 3076 1938-8-25
Solanaceae GH: 01145638 Chamaesaracha coronopus (Dunal) A. Gray USA: Arizona Painted Desert between Cameron and the Navaj... A. Nelson & R. A. Nelson 2851 1938-5-25
Verbenaceae GH: 01800966 Glandularia gooddingii (Briquet) Solbrig USA: Arizona Roadbanks east of Kingman A. Nelson & R. A. Nelson 2776 1938-5-20
Vitaceae GH: 01578945 Vitis arizonica Engelmann USA: Utah west of St. George A. Nelson & R. A. Nelson 2726 1938-5-18
