Asclepiadaceae GH: 00961108 Asclepias pumila (A. Gray) Vail USA: Wyoming Sybille Creek E. E. Nelson 677 1901-8-8
Asteraceae GH: 00000912 Antennaria imbricata E. Nelson USA: Wyoming North Fork of Pole Creek E. E. Nelson 2036 1896-7-11
GH: 00000936 Antennaria media Greene USA: Wyoming La Plata Mines E. E. Nelson 5211 1898-8-28
GH: 00000936 Antennaria mucronata E. Nelson USA: Wyoming La Plata Mines E. E. Nelson 5211 1898-8-28
GH: 00000912 Antennaria rosea Greene USA: Wyoming North Fork of Pole Creek E. E. Nelson 2036 1896-7-11
GH: 00002716 Artemisia arbuscula nova (A. Nelson) G. H. Ward USA: Wyoming Centennial Valley E. E. Nelson 5272 1898-8-31
GH: 00988310 Artemisia longifolia Nuttall USA: Wyoming Wallace Creek E. E. Nelson 5002 1898-7-30
GH: 00002716 Artemisia nova A. Nelson USA: Wyoming Centennial Valley E. E. Nelson 5272 1898-8-31
GH: 00002716 Artemisia tenuis Rydberg USA: Wyoming Centennial Valley E. E. Nelson 5272 1898-8-31
GH: 01234957 Artemisia tripartita Rydberg USA: Wyoming Centennial Valley E. E. Nelson 5271 1898-8-31
GH: 02021666 Cirsium pulcherrimum (Rydberg) K. Schumann USA: Wyoming Medicine Bow E. E. Nelson 4396 1898-7-8
GH: 02207078 Ericameria parryi (A. Gray) G. L. Nesom & G. I. Baird USA: Wyoming Chimney Park, S. Wyo E. E. Nelson 659 1901-8-1
GH: 02348008 Erigeron eatonii A. Gray USA: Wyoming Cooper Creek E. E. Nelson 4335 1898-6-5
GH: 02348282 Erigeron filifolius Nuttall USA: Oregon [data not captured] E. E. Nelson 863 1905-7-10
GH: 02353049 Erigeron glacialis (Nuttall) A. Nelson USA: Wyoming La Plata Mines E. E. Nelson 5193 1898-8-27
GH: 02353995 Erigeron melanocephalus A. Nelson USA: Wyoming La Plata Mines E. E. Nelson 5180 1898-8-26
GH: 02352055 Erigeron nematophyllus Rydberg USA: Wyoming Laramie Red Hills E. E. Nelson 2946 1897-6-4
GH: 01831796 Hieracium gracile minimum A. Nelson USA: Wyoming La Plata Mines E. E. Nelson 5079 1898-8-23
GH: 00010767 Oonopsis argillacea A. Nelson USA: Wyoming Bate's Hole E. E. Nelson 4867 1898-7-13
GH: 00013033 Tetradymia canescens de Candolle USA: Wyoming Laramie Plains E. E. Nelson 5062 1898-8-21
Betulaceae GH: 02195388 Betula glandulosa Michaux USA: Wyoming Chimney Park, S. Wyo. E. E. Nelson 646 1901-8-1
Boraginaceae GH: 02060093 Oreocarya cinerea Greene USA: Wyoming Platte River at Ferris E. E. Nelson 4906 1898-7-19
GH: 02060551 Oreocarya flavoculata A. Nelson USA: Wyoming Cooper Creek E. E. Nelson 4337 1898-6-6
Brassicaceae GH: 00019089 Draba surculifera A. Nelson USA: Wyoming La Plata Mines E. E. Nelson 5125 1898-8-24
GH: 01549492 Lepidium ramosissimum A. Nelson USA: Wyoming Laramie E. E. Nelson 3356 1897-7-9
GH: 01687720 Physaria montana (A. Gray) Greene USA: Wyoming Laramie River E. E. Nelson 228 1900-5-28
GH: 01691873 Rorippa alpina (S. Watson) Rydberg USA: Wyoming La Plata Mines E. E. Nelson 5185 1898-8-26
Chenopodiaceae GH: 00036867 Atriplex aptera A. Nelson USA: Wyoming Laramie: E. E. Nelson 738 1901-9
GH: 02004822 Atriplex argentea Nuttall USA: Wyoming Little Laramie River E. E. Nelson 725 1901-8-27
GH: 02004957 Atriplex buxifolia Rydberg USA: Wyoming Laramie River E. E. Nelson 734 1901-8-31
GH: 00036867 Atriplex gardneri aptera (A. Nelson) S. L. Welsh & C. W. Crompton USA: Wyoming Laramie: E. E. Nelson 738 1901-9
GH: 01826052 Atriplex leptocarpa F. Mueller USA: Wyoming Laramie: Grown on Experiment Farm. E. E. Nelson 714 1902-8
GH: 01826820 Atriplex rosea Linnaeus USA: Wyoming Laramie: [no additional data] E. E. Nelson 737 1901-9
A: 01826985 Atriplex tridentata Kuntze USA: Wyoming Poison Spider Creek E. E. Nelson 5019 1898-8-1
GH: 01826980 Atriplex tridentata Kuntze USA: Wyoming Big Laramie River E. E. Nelson 736 1901-8-29
GH: 01826976 Atriplex tridentata Kuntze USA: Wyoming Poison Spider Creek E. E. Nelson 5019 1898-8-1
GH: 01785306 Stutzia dioica (Nuttall) E. H. Zacharias USA: Wyoming Wallace Creek E. E. Nelson 4999 1898-7-30
Commelinaceae GH: 02113740 Tradescantia occidentalis (Britton) Smyth USA: Wyoming Platte River, near Ferris E. E. Nelson 4904 1898-7-19
Convolvulaceae GH: 02056078 Cuscuta approximata Babington USA: Wyoming Big Goose Creek E. E. Nelson 292 1900-7-18
GH: 02057649 Evolvulus pilosus Roxburgh USA: Wyoming Sybille Creek E. E. Nelson 676 1901-8-8
Crassulaceae GH: 01991601 Sedum lanceolatum Torrey USA: Wyoming Laramie Hills E. E. Nelson 104 1897-7-13
Cyperaceae GH: 02368141 Carex gynocrates Wormskjold ex Drejer USA: Wyoming La Plata Mines E. E. Nelson 5259 1898-8-30
GH: 02467250 Carex rossii Boott USA: Wyoming La Plata Mines E. E. Nelson 5148 1898-8-25
GH: 01775104 Carex saxatilis Linnaeus USA: Wyoming [data not captured] E. E. Nelson 5199 1898-8-27
Elaeagnaceae GH: 01576479 Shepherdia argentea (Pursh) Nuttall USA: Wyoming Big Goose Creek E. E. Nelson 293 1900-7-18
Ericaceae GH: 01591946 Gaultheria humifusa (Graham) Rydberg USA: Wyoming La Plata Mines E. E. Nelson 5088 1898-8-23
GH: 01719113 Moneses uniflora (Linnaeus) A. Gray USA: Wyoming La Plata Mines E. E. Nelson 5104 1898-8-24
GH: 01719121 Moneses uniflora (Linnaeus) A. Gray USA: Wyoming La Plata Mines E. E. Nelson 5104 1898-8-24
Fabaceae GH: 00058579 Aragallus collinus A. Nelson USA: Wyoming Seminole Mountains E. E. Nelson 4925 1898-7-21
GH: 02064146 Astragalus alpinus Linnaeus USA: Wyoming Chimney Park, S. Wyo. E. E. Nelson 653 1901-8-1
GH: 02064570 Astragalus australis glabriusculus (Hooker) Isely USA: Wyoming Table Mt. E. E. Nelson 4350 1898-6-12
GH: 02047316 Astragalus ceramicus E. Sheldon USA: Wyoming Platte River near Ferris E. E. Nelson 4910 1898-7-19
GH: 02047728 Astragalus crassicarpus Nuttall USA: Wyoming Laramie Hills E. E. Nelson 206 1899-6-4
GH: 02044343 Astragalus eucosmus B. L. Robinson USA: Wyoming Laramie Hills, S. Wyo. E. E. Nelson 621 1901-7-19
GH: 00058735 Astragalus exilifolius A. Nelson USA: Wyoming Freezeout Hills E. E. Nelson 4493 1898-7-10
GH: 02044536 Astragalus flexuosus (Hooker) Douglas ex G. Don USA: Wyoming Jelm E. E. Nelson 663 1901-8-3
GH: 02044645 Astragalus geyeri A. Gray USA: Wyoming Platte River near Ferris E. E. Nelson 4911 1898-7-19
GH: 02044864 Astragalus gracilis Nuttall USA: Wyoming Laramie Red Hills E. E. Nelson 3388 1897-7-15
GH: 02044875 Astragalus grayi Parry ex S. Watson USA: Wyoming Freezeout Hills [in Shirley Basin] E. E. Nelson 4866 1898-7-11
GH: 02049896 Astragalus parryi A. Gray USA: Wyoming Head of Pole Creek E. E. Nelson 605 1901-7-3
GH: 02048230 Astragalus purshii Douglas ex Hooker USA: Wyoming Laramie E. E. Nelson 188 1899-5-24
GH: 00058735 Astragalus simplicifolius (Nuttall) A. Gray USA: Wyoming Freezeout Hills E. E. Nelson 4493 1898-7-10
GH: 02030131 Astragalus tridactylicus A. Gray USA: Wyoming Bear Creek E. E. Nelson 4949 1898-7-23
GH: 00065421 Lupinus alpestris A. Nelson USA: Wyoming La Plata Mines E. E. Nelson 5070 1898-8-22
GH: 00065421 Lupinus alpestris (A. Nelson) D. B. Dunn & J. M. Gillett USA: Wyoming La Plata Mines E. E. Nelson 5070 1898-8-22
GH: 00065530 Lupinus humicola A. Nelson USA: Wyoming Laramie Hills E. E. Nelson 4387 1898-7-1
GH: 02130866 Oxytropis besseyi (Rydberg) Blankinship USA: Wyoming Seminole Mts. E. E. Nelson 4924 1898-7-21
GH: 02132224 Oxytropis campestris gracilis (A. Nelson) Barneby USA: Wyoming Head of Pole Creek, S. Wyo. E. E. Nelson 601 1901-7-3
GH: 02132738 Oxytropis deflexa sericea Torrey & A. Gray USA: Wyoming Laramie Hills E. E. Nelson 625 1901-7-19
GH: 00058579 Oxytropis lunelliana A. Nelson USA: Wyoming Seminole Mountains E. E. Nelson 4925 1898-7-21
GH: 00058579 Oxytropis nana Nuttall USA: Wyoming Seminole Mountains E. E. Nelson 4925 1898-7-21
GH: 02135565 Sophora nuttalliana B. L. Turner USA: Wyoming Mill Creek E. E. Nelson 5047 1898-8-12
GH: 02342773 Trifolium dasyphyllum anemophilum (Greene) J. S. Martin USA: Wyoming Laramie Hills E. E. Nelson 211 1899-6-4
Gentianaceae GH: 02072084 Gentiana affinis Grisebach USA: Wyoming Jelm: [no additional data] E. E. Nelson 665 1907-8-3
GH: 02167587 Gentianella amarella acuta (Michaux) J. M. Gillett USA: Wyoming Chimney Park, S. Wyoming E. E. Nelson 649 1907-8-1
GH: 02166262 Gentianopsis thermalis (Kuntze) Iltis USA: Wyoming Chimney Park E. E. Nelson 647 1901-8-1
Lamiaceae GH: 01696558 Salvia reflexa J. W. Horneman(n) USA: Wyoming Sybille Creek E. E. Nelson 678 1901-8-8
GH: 01697558 Scutellaria galericulata Linnaeus USA: Wyoming Laramie: Laramie River E. E. Nelson 634 1901-7-31
Liliaceae GH: 00029962 Lilium montanum A. Nelson USA: Wyoming Willow Creek E. E. Nelson 4376 1898-7-1
Linaceae GH: 02053057 Linum kingii S. Watson USA: Wyoming Chalk Mt. E. E. Nelson 4875 1898-7-13
Malvaceae GH: 02201480 Iliamna rivularis (Douglas) Greene USA: Wyoming Ferris Mts. E. E. Nelson 4975 1898-7-25
GH: 02200982 Sidalcea candida A. Gray USA: Wyoming Chimney Park, S. Wyo. E. E. Nelson 651 1901-8-1
Melampsoraceae FH: 00877727 Coleosporium jonesii (Peck) Arthur USA: Wyoming Laramie: [no additional data] E. E. Nelson 5305 1898-9-8
Nyctaginaceae GH: 00037261 Abronia elliptica A. Nelson USA: Wyoming Medicine Bow River E. E. Nelson 4398 1898-7-9
Oleaceae GH: 01849901 Fraxinus pennsylvanica Marshall USA: Wyoming Platte Canon near Badger E. E. Nelson 690 1901-8-12
Onagraceae GH: 01673961 Epilobium anagallidifolium Lamarck USA: Wyoming La Plata Mines E. E. Nelson 5254 1898-8-30
Orchidaceae AMES: 02028074 Goodyera oblongifolia Rafinesque USA: Washington Bumping River E. E. Nelson 1175 1922-8-8
AMES: 02051377 Listera cordata (Linnaeus) R. Brown USA: Wyoming La Plata Mines E. E. Nelson 5093 1898-8-23
AMES: 02063680 Platanthera dilatata (Pursh) Lindley ex Beck USA: Wyoming La Plata Mines E. E. Nelson 5095 1898-8-23
Orobanchaceae GH: 01876792 Castilleja flava S. Watson USA: Wyoming Head of Pole Creek S. Wyo. E. E. Nelson 618 1901-7-3
GH: 02080510 Pedicularis crenulata Bentham USA: Wyoming Laramie Hills, S. Wyo. E. E. Nelson 624 1901-7-19
Papaveraceae GH: 01856544 Argemone hispida A. Gray USA: Wyoming Wheatland E. E. Nelson 783 1900-7-11
GH: 01738460 Corydalis aurea Willdenow USA: Wyoming Laramie: Laramie Hills E. E. Nelson 210 1899-6-4
Pinaceae GH: 00396593 Picea engelmannii Parry ex Engelmann USA: Wyoming Head of Pole Creek E. E. Nelson 614 1901-7-3
GH: 00397285 Picea pungens Engelmann USA: Wyoming Chimney Park, S. Wyo. E. E. Nelson 637 1901-8-1
Plantaginaceae GH: 01998253 Chionophila jamesii Bentham USA: Wyoming La Plata Mines E. E. Nelson 5206 1898-8-28
GH: 02118255 Penstemon cinereus Piper USA: Oregon [data not captured] E. E. Nelson 855 1905-6-19
GH: 00091394 Penstemon glaber glaber USA: Wyoming Laramie River E. E. Nelson 3185 1897-6-18
GH: 00091394 Penstemon riparius A. Nelson USA: Wyoming Laramie River E. E. Nelson 3185 1897-6-18
GH: 02122337 Penstemon rydbergii A. Nelson USA: Wyoming Head of Pole Creek, S. Wyo. E. E. Nelson 611 1901-7-3
GH: 01801271 Penstemon virens Pennell ex Rydberg USA: Wyoming Head of Pole Creek, S. Wyo. E. E. Nelson 602 1901-7-3
Polemoniaceae GH: 01574372 Phlox hoodii glabrata (E. E. Nelson) Wherry USA: Wyoming Laramie: Laramie E. E. Nelson 180 1899-5-10
GH: 01574387 Phlox kelseyi Wherry USA: Wyoming Cooper Creek E. E. Nelson 4336 1898-6-6
GH: 01574787 Phlox muscoides Nuttall USA: Wyoming Laramie Hills E. E. Nelson 191 1899-5-27
Portulacaceae GH: 01858877 Claytonia megarhiza (A. Gray) Parry ex S. Watson USA: Wyoming La Plata Mines E. E. Nelson 5240 1898-8-29
Pottiaceae FH: 00623179 Bryoerythrophyllum recurvirostrum (Hedwig) P. C. Chen USA: Wyoming [data not captured] E. E. Nelson 3438 1897-7-22
Pucciniaceae FH: 01001701 Puccinia intermixta Peck USA: Wyoming Casper: [no additional data] E. E. Nelson 5022 1898-8-2
Ranunculaceae GH: 01706556 Anemone canadensis Linnaeus USA: Wyoming Laramie Hills, S. Wyo. E. E. Nelson 619 1901-7-19
GH: 01709020 Aquilegia coerulea James USA: Wyoming Head of Pole Creek, S. Wyo. E. E. Nelson 298 1901-7-3
GH: 01665540 Ranunculus inamoenus alpeophilus (A. Nelson) L. D. Benson USA: Wyoming La Plata Mines E. E. Nelson 5252 1898-8-30
GH: 00038538 Thalictrum leiophyllum Greene USA: Wyoming Chimney Park, S. Wyoming E. E. Nelson 648 1901-8-1
Rhamnaceae A: 01789513 Ceanothus fendleri A. Gray USA: Wyoming Mill Creek E. E. Nelson 1898-8-12
GH: 01789514 Ceanothus fendleri A. Gray USA: Wyoming Horseshoe Park, Laramie Mts. E. E. Nelson 1901-8-16
GH: 01789518 Ceanothus fendleri A. Gray USA: Wyoming Mill Creek E. E. Nelson 1898-8-12
Rosaceae GH: 01587033 Agrimonia striata Michaux USA: Wyoming Mill Creek E. E. Nelson 5044 1898-8-12
A: 01612784 Crataegus douglasii Lindley USA: Wyoming Seminole Mts E. E. Nelson 5060 1898-7-22
GH: 01608167 Dasiphora fruticosa (Linnaeus) Rydberg USA: Wyoming Laramie Hills, S. Wyo. E. E. Nelson 623 1901-7-19
GH: 01590597 Physocarpus monogynus (Torrey) J. M. Coulter USA: Wyoming Platte Canon near Badger E. E. Nelson 691 1901-8-12
GH: 01566595 Potentilla anserina Linnaeus USA: Wyoming Laramie River E. E. Nelson 3186 1897-6-18
GH: 01566942 Potentilla biennis Greene USA: Wyoming Wallace Creek E. E. Nelson 5008 1898-7-30
GH: 01567194 Potentilla concinna Richardson USA: Wyoming Chug Creek E. E. Nelson 4348 1898-6-10
GH: 01568367 Potentilla hippiana Lehmann USA: Wyoming La Plata Mines E. E. Nelson 5075 1898-8-23
GH: 00019558 Potentilla jucunda A. Nelson USA: Wyoming Head of Pole Creek E. E. Nelson 3420 1897-7-22
GH: 01569557 Potentilla norvegica Linnaeus USA: Wyoming Laramie Plains E. E. Nelson 3408 1899-7-19
GH: 01570061 Potentilla pulcherrima Lehmann USA: Wyoming Head of Pole Creek E. E. Nelson 3421 1897-7-22
GH: 01570068 Potentilla pulcherrima Lehmann USA: Wyoming La Plata Mines E. E. Nelson 5077 1898-8-23
GH: 01570734 Potentilla supina paradoxa (Nuttall) Soják USA: Wyoming Laramie Plains E. E. Nelson 3407 1897-7-19
GH: 00019627 Potentilla wyomingensis A. Nelson USA: Wyoming Seminole Mountains E. E. Nelson 4916 1898-7-21
Rubiaceae GH: 02359182 Galium aparine Linnaeus USA: Wyoming Indian Grove Mts. E. E. Nelson 4886 1898-7-17
Saxifragaceae GH: 00043155 Sullivantia halmicola A. Nelson USA: Wyoming Hat Six Falls E. E. Nelson 5032 1898-5-7
Violaceae GH: 02147914 Viola nuttallii Pursh USA: Wyoming Laramie Hills E. E. Nelson 226 1900-5-23
GH: 00067160 Viola vallicola A. Nelson USA: Wyoming Plumbago Canyon E. E. Nelson 4345 1898-6-9
GH: 02211968 Viola vallicola A. Nelson USA: Wyoming Head of Pole Creek E. E. Nelson 19 1899-5-27
Vitaceae GH: 01579874 Vitis riparia Michaux USA: Wyoming Laramie: Platte Canon near Badger E. E. Nelson 689 1901-8-12