Acarosporaceae FH: 00259237 Acarospora chrysops (Tuckerman) H. Magnusson USA: Nebraska Deer Creek, North Platte, Rocky Mountains F. V. Hayden 1859
FH: 00259239 Acarospora chrysops (Tuckerman) H. Magnusson USA: Nebraska Deer Creek, North Platte F. V. Hayden
FH: 00259266 Acarospora chrysops (Tuckerman) H. Magnusson USA: Colorado F. V. Hayden 1872
FH: 00259268 Acarospora strigata (Nylander) Jatta USA: Colorado F. V. Hayden 1872
Apiaceae GH: 00075884 Cymopterus bipinnatus S. Watson USA: Montana Rocky Mountains south of Virginia City F. V. Hayden 14 1871-6-25
GH: 00075884 Cymopterus foeniculaceus Nuttall USA: Montana Rocky Mountains south of Virginia City F. V. Hayden 14 1871-6-25
GH: 00075884 Cymopterus nivalis S. Watson USA: Montana Rocky Mountains south of Virginia City F. V. Hayden 14 1871-6-25
GH: 00076994 Peucedanum villosum Nuttall ex S. Watson USA: South Dakota Fort Pierre [Nebraska Territory] F. V. Hayden 1855
GH: 00075884 Pseudocymopterus bipinnatus (S. Watson) J. M. Coulter & Rose USA: Montana Rocky Mountains south of Virginia City F. V. Hayden 14 1871-6-25
Asteraceae GH: 00003729 Aster alpigenus haydenii (Porter) Cronquist USA: Wyoming Yellowstone R.; Up. Falls, W.T. [Yellowstone... F. V. Hayden 15 1871-8-27
GH: 00003729 Aster haydenii Porter USA: Wyoming Yellowstone R.; Up. Falls, W.T. [Yellowstone... F. V. Hayden 15 1871-8-27
GH: 02020491 Cirsium canescens Nuttall USA: Nebraska Sandhills of the Upper Platte F. V. Hayden
GH: 02142881 Crepis runcinata Torrey & A. Gray USA: Nevada [data not captured] F. V. Hayden 43 1871-6-25
GH: 02203795 Dieteria canescens nebraskana (B. L. Turner) D. R. Morgan & R. L. Hartman USA: Sand hills of the Platte F. V. Hayden
GH: 02207441 Erigeron acris kamteschaticus (de Candolle) Herder USA: Laramie Mts F. V. Hayden
GH: 02348700 Erigeron glabellus Nuttall USA: [data not captured] F. V. Hayden
GH: 02348933 Erigeron glacialis (Nuttall) A. Nelson USA: Utah Uintah mts F. V. Hayden 1870-9
GH: 02351471 Erigeron speciosus de Candolle USA: Wyoming Yellowstone Lake - E. shore F. V. Hayden 20 1871-8-22
GH: 02351796 Erigeron strigosus Muhlenberg ex Willdenow USA: Nebraska [illegible] Fork F. V. Hayden
GH: 01834717 Lactuca ludoviciana (Nuttall) Riddell USA: South Dakota Black Hills of the Platte F. V. Hayden
GH: 00003729 Oreostemma alpigenum haydenii (Porter) G. L. Nesom USA: Wyoming Yellowstone R.; Up. Falls, W.T. [Yellowstone... F. V. Hayden 15 1871-8-27
Boraginaceae GH: 00269287 Cryptantha thyrsiflora (Greene) Payson USA: Wyoming Camp Carlin F. V. Hayden 1870-7-30
GH: 02059782 Oreocarya cana A. Nelson USA: Nebraska Platte. F. V. Hayden
Brassicaceae GH: 00019464 Nasturtium calycinum Engelmann USA: Montana Sandy bottom of Yellowstone F. V. Hayden 1854-7
GH: 01573680 Physaria alpina Rollins USA: Nebraska [no additional data] F. V. Hayden 1854-7
GH: 01687449 Physaria ludoviciana (Nuttall) O'Kane & Al-Shehbaz USA: Yellowstone [Nebraska Territory] F. V. Hayden 1853
GH: 00019464 Rorippa calycina (Engelmann) Rydberg USA: Montana Sandy bottom of Yellowstone F. V. Hayden 1854-7
Caprifoliaceae GH: 02185886 Viburnum lentago Linnaeus USA: North Dakota Fort Union, Platte F. V. Hayden
Caryophyllaceae GH: 00283139 Cerastium brachypodum (Engelmann ex A. Gray) B. L. Robinson USA: Nebraska Mauvaises Terres [Bad Lands] F. V. Hayden
GH: 00283139 Cerastium brachypodum compactum B. L. Robinson USA: Nebraska Mauvaises Terres [Bad Lands] F. V. Hayden
GH: 01744439 Drymaria leptophylla (Chamisso & Schlechtendal) Fenzl USA: Colorado [no additional data] F. V. Hayden 1869
GH: 01713693 Minuartia rubella (Wahlenberg) Hiern USA: Utah Uintah Mtns. F. V. Hayden 1870-9
GH: 01714590 Paronychia depressa (A. Gray & Torrey) Nuttall ex A. Nelson USA: Nebraska Running Water, Platte F. V. Hayden
GH: 01715063 Paronychia sessiliflora Nuttall USA: Yellowstone [Nebraska Territory] F. V. Hayden 32 1853
GH: 01752165 Silene drummondii Hooker USA: Nebraska First seen at head of Loup Fork. F. V. Hayden
Chenopodiaceae GH: 00267395 Chenopodina depressa (Pursh) Moquin-Tandon USA: Upper Missouri F. V. Hayden
GH: 00037180 Chenopodium leptophyllum Nuttall USA: Nebraska Sand Hills of the Platte F. V. Hayden 1858
GH: 00037180 Chenopodium leptophyllum subglabrum S. Watson USA: Nebraska Sand Hills of the Platte F. V. Hayden 1858
GH: 00037180 Chenopodium subglabrum (S. Watson) A. Nelson USA: Nebraska Sand Hills of the Platte F. V. Hayden 1858
GH: 00267394 Schoberia occidentalis S. Watson USA: Montana Crow Agency F. V. Hayden 67 1871-8-8
GH: 00267394 Suaeda calceoliformis (Hooker) Moquin-Tandon USA: Montana Crow Agency F. V. Hayden 67 1871-8-8
GH: 00267396 Suaeda calceoliformis (Hooker) Moquin-Tandon USA: Upper Missouri F. V. Hayden
GH: 00267394 Suaeda depressa (Pursh) S. Watson USA: Montana Crow Agency F. V. Hayden 67 1871-8-8
GH: 00267396 Suaeda depressa (Pursh) S. Watson USA: Upper Missouri F. V. Hayden
GH: 00267394 Suaeda depressa erecta S. Watson USA: Montana Crow Agency F. V. Hayden 67 1871-8-8
GH: 00267395 Suaeda depressa erecta S. Watson USA: Upper Missouri F. V. Hayden
GH: 00267396 Suaeda depressa erecta S. Watson USA: Upper Missouri F. V. Hayden
GH: 00267395 Suaeda torreyana S. Watson USA: Upper Missouri F. V. Hayden
Cyperaceae GH: 00027257 Carex aperta Boott USA: South Dakota On Missouri River near Fort Pierre F. V. Hayden 1853
GH: 00027142 Carex aristata longo-lanceolata Dewey USA: Nebraska F. V. Hayden
GH: 00221821 Carex aristata longo-lanceolata Dewey USA: Nebraska Bad Lands F. V. Hayden
GH: 00221822 Carex aristata longo-lanceolata Dewey USA: Nebraska F. V. Hayden
GH: 02578268 Carex atherodes Sprengel USA: Nebraska [data not captured] F. V. Hayden
GH: 02578270 Carex atherodes Sprengel USA: Nebraska [data not captured] F. V. Hayden
GH: 02578271 Carex atherodes Sprengel USA: North Dakota [data not captured] F. V. Hayden 1855-7-5
GH: 02393571 Carex canescens Linnaeus : US and Canada (countries only and not Greenl... F. V. Hayden 1860-6-16
GH: 00222543 Carex douglasii Boott USA: Wyoming Jackson Hole on Snake River F. V. Hayden 1860-6-15
GH: 00222543 Carex douglasii densispicata Dewey USA: Wyoming Jackson Hole on Snake River F. V. Hayden 1860-6-15
GH: 00027257 Carex haydenii Dewey USA: South Dakota On Missouri River near Fort Pierre F. V. Hayden 1853
GH: 00027289 Carex lacustris laxiflora Dewey USA: Nebraska F. V. Hayden
GH: 00221821 Carex laeviconica Dewey USA: Nebraska Bad Lands F. V. Hayden
GH: 00221822 Carex laeviconica Dewey USA: Nebraska F. V. Hayden
GH: 00027142 Carex laeviconica Dewey USA: Nebraska F. V. Hayden
GH: 00027291 Carex laeviconica Dewey USA: Nebraska Big Sioux River F. V. Hayden
GH: 02578509 Carex laeviconica Dewey USA: Montana Yellowstone F. V. Hayden 1854-7
GH: 00027339 Carex nebrascensis Dewey USA: Nebraska F. V. Hayden 1853
GH: 02368692 Carex nuttallii Dewey USA: Nebraska [no additional data] F. V. Hayden
GH: 02368690 Carex nuttallii Dewey USA: Nebraska [no additional data] F. V. Hayden 580
GH: 02368689 Carex nuttallii Dewey USA: Nebraska Grindstone Hill, 100 miles west of Fort Pier... F. V. Hayden
GH: 02369227 Carex praegracilis W. Boott USA: Nebraska [no additional data] F. V. Hayden 2
GH: 02369222 Carex praegracilis W. Boott USA: Nebraska [no additional data] F. V. Hayden
GH: 02369220 Carex praegracilis W. Boott USA: Nebraska [data not captured] F. V. Hayden 4
GH: 02369221 Carex praegracilis W. Boott USA: Nebraska [no additional data] F. V. Hayden
GH: 02369219 Carex praegracilis W. Boott USA: Nebraska [illegible] Port[?] Creek, White River F. V. Hayden 1855
GH: 02369218 Carex praegracilis W. Boott USA: Nebraska White River, [illegible] F. V. Hayden 1855
GH: 00027389 Carex raynoldsii Dewey USA: Idaho Pierres Hole F. V. Hayden 1860-6-20
GH: 00027470 Carex vallicola Dewey USA: Idaho Jackson's Hole on Snake River, alt. 6000 fee... F. V. Hayden 1860-6-18
Euphorbiaceae GH: 00267473 Euphorbia arkansana missouriensis Norton USA: South Dakota Fort Pierre: Red Cedar Island below Fort Pie... F. V. Hayden 1853-6-19
GH: 00267473 Euphorbia dictyosperma Fischer & C. A. Meyer USA: South Dakota Fort Pierre: Red Cedar Island below Fort Pie... F. V. Hayden 1853-6-19
GH: 00267473 Euphorbia spathulata Lamarck USA: South Dakota Fort Pierre: Red Cedar Island below Fort Pie... F. V. Hayden 1853-6-19
Fabaceae GH: 02067514 Astragalus adsurgens robustior Hooker USA: South Dakota Fort Pierre [Nebraska Territory] F. V. Hayden 1853
GH: 02067672 Astragalus agrestis G. Don USA: Nebraska Fort Pierre F. V. Hayden 1853
GH: 02047075 Astragalus canadensis Linnaeus USA: Nebraska Running Water Platte F. V. Hayden
GH: 02044129 Astragalus drummondii Douglas ex Hooker USA: North Dakota Fort Union F. V. Hayden 329
GH: 02044535 Astragalus flexuosus (Hooker) Douglas ex G. Don : US and Canada (countries only and not Greenl... F. V. Hayden 1853
GH: 02049296 Astragalus mollissimus Torrey USA: Nebraska N. Platte F. V. Hayden
GH: 02049959 Astragalus pectinatus (Douglas ex Hooker) Douglas ex G. Don USA: Nebraska Yellowstone F. V. Hayden 315 1854
GH: 02049960 Astragalus pectinatus (Douglas ex Hooker) Douglas ex G. Don USA: Nebraska Platte F. V. Hayden
GH: 01921625 Dalea villosa (Nuttall) Sprengel USA: Mauvaises Terres [Nebraska Territory] F. V. Hayden 1853
GH: 01921626 Dalea villosa (Nuttall) Sprengel USA: Nebraska Platte F. V. Hayden 1858
GH: 00040169 Lupinus burkei S. Watson USA: Great Falls of the Yellowstone River F. V. Hayden 7 1871-8-27
GH: 00040169 Lupinus polyphyllus Lindley USA: Great Falls of the Yellowstone River F. V. Hayden 7 1871-8-27
GH: 00040169 Lupinus sp. USA: Great Falls of the Yellowstone River F. V. Hayden 7 1871-8-27
GH: 00263812 Robinia neomexicana A. Gray USA: New Mexico F. V. Hayden 1869
GH: 00263812 Robinia neomexicana neomexicana USA: New Mexico F. V. Hayden 1869
GH: 00063502 Trifolium haydenii Porter USA: Montana Mountains south of Virginia City F. V. Hayden 3 1871-6-25
Haloragaceae GH: 01628278 Myriophyllum sibiricum Komarov USA: Wyoming Yellowstone F. V. Hayden 1853
Hippuridaceae GH: 02000495 Hippuris vulgaris Linnaeus USA: Nebraska Mandan village F. V. Hayden 1854-9
Juncaceae GH: 00029619 Juncus brachyphyllus Wiegand USA: Upper Platte F. V. Hayden 23
Lamiaceae GH: 00269264 Hedeoma drummondii Bentham USA: U. MIssouri [Upper Missouri river] F. V. Hayden
GH: 00269264 Hedeoma reverchonii serpyllifolium (Small) R. S. Irving USA: U. MIssouri [Upper Missouri river] F. V. Hayden
GH: 01599410 Monarda pectinata Nuttall USA: Nebraska N. Platte F. V. Hayden
GH: 01596396 Pycnanthemum virginianum (Linnaeus) B. L. Robinson & Fernald USA: Nebraska Loup Fork F. V. Hayden
GH: 01700344 Teucrium laciniatum Torrey USA: Colorado [no additional data] F. V. Hayden 1869
GH: 00002164 Teucrium occidentale A. Gray USA: Nebraska Loup Fork, Platte River F. V. Hayden
Lecanoraceae FH: 00259237 Lecanora chrysops Tuckerman USA: Nebraska Deer Creek, North Platte, Rocky Mountains F. V. Hayden 1859
FH: 00259239 Lecanora chrysops Tuckerman USA: Nebraska Deer Creek, North Platte F. V. Hayden
FH: 00259266 Lecanora xanthophana Nylander USA: Colorado F. V. Hayden 1872
FH: 00259268 Lecanora xanthophana dealbata Tuckerman USA: Colorado F. V. Hayden 1872
Lecideaceae FH: 00286105 Lecidea russellii Tuckerman USA: Rocky Mount. F. V. Hayden
Liliaceae GH: 01540759 Hornungia procumbens (Linnaeus) Hayek USA: Wyoming Windriver Mountains F. V. Hayden
Linaceae GH: 00043788 Linum kingii sedoides Porter USA: Utah Uintah Mountains F. V. Hayden 1870-9
Plantaginaceae GH: 02119731 Penstemon glaber Pursh USA: Wyoming Wyoming Territory F. V. Hayden 1870-7-30
GH: 00091284 Penstemon haydenii S. Watson USA: Wyoming Laramie Mountains F. V. Hayden
GH: 01802077 Plantago elongata Pursh USA: [data not captured] F. V. Hayden 1853
Poaceae GH: 01812880 Andropogon hallii Hackel USA: Nebraska [no additional data] F. V. Hayden
GH: 01812871 Andropogon hallii Hackel USA: Nebraska [no additional data] F. V. Hayden 1853
Polygonaceae GH: 02043192 Eriogonum umbellatum Torrey USA: Wyoming Laramie Mts. F. V. Hayden
GH: 00282830 Polygonum douglasii Greene USA: Wyoming Yellowstone Lake, W. T. [Wyoming Territory] F. V. Hayden 68 in part 1871-4-9
GH: 00282830 Polygonum douglasii latifolium (Engelmann) Greene USA: Wyoming Yellowstone Lake, W. T. [Wyoming Territory] F. V. Hayden 68 in part 1871-4-9
GH: 02007339 Polygonum polygaloides kelloggii (Greene) J. C. Hickman USA: Wyoming Yellowstone Lake F. V. Hayden 68, in part. 1871-8-9
Potamogetonaceae GH: 01564403 Potamogeton diversifolius Rafinesque USA: Nebraska Pinoes Spring F. V. Hayden 1893-6-30
Rosaceae A: 00026182 Cercocarpus parvifolius hirsutissimus C. K. Schneider USA: Wyoming Laramie Mountains F. V. Hayden
GH: 01647661 Crataegus saligna Greene USA: Colorado [no additional data] F. V. Hayden 1869
GH: 01566053 Ivesia gordonii alpicola (Rydberg ex Howell) Ertter & Reveal USA: Utah Uintah Mountains F. V. Hayden 1870-9
GH: 01567449 Potentilla effusa Douglas ex Lehmann USA: North Dakota Fort Clark [Nebraska Territory] F. V. Hayden 159 1853
