Amaranthaceae GH: 01928669 Amaranthus albus Linnaeus USA: Wyoming Lance Creek Junction, 22 miles north of Lusk... Ced. L. Porter 7442 1957-9-8
Asteraceae GH: 02141858 Agoseris sp. USA: Wyoming Southwestern Albany County; Medicine Bow Ran... Ced. L. Porter 7376 1957-8-2
GH: 01234295 Artemisia pedatifida Nuttall USA: Wyoming Whiskey Gap Ced. L. Porter 7358 1957-7-25
GH: 02172878 Cirsium americanum (A. Gray) K. Schumann USA: Wyoming Southwestern Albany County. Medicine Bow Ran... Ced. L. Porter 7381 1957-8-2
GH: 01831002 Crepis runcinata Torrey & A. Gray USA: Wyoming Big Horn Range west of Buffalo. Crazy Woman ... Ced. L. Porter 7425 1957-8-10
GH: 02142992 Crepis runcinata Torrey & A. Gray USA: Wyoming Laramie Range, on Laramie River near Bluegra... Ced. L. Porter 7308 1957-7-4
GH: 02205687 Ericameria nauseosa graveolens (Nuttall) Reveal & Schuyler USA: Wyoming Along the North Platte River 3 miles north o... Ced. L. Porter 7364 1957-7-26
GH: 02351138 Erigeron pumilis Nuttall USA: Wyoming 20 miles north of Baggs Ced. L. Porter 7291 1957-6-20
GH: 01831215 Hieracium albiflorum Hooker USA: Idaho [data not captured] Ced. L. Porter 7339 1957-7-11
GH: 01831286 Hieracium albiflorum Hooker USA: Wyoming Casper Mountain, on Circle Drive Ced. L. Porter 7401 1957-8-9
Boraginaceae GH: 01994480 Lappula coronata Greene USA: Wyoming 20 miles north of Baggs Ced. L. Porter 7296 1957-6-20
GH: 01994814 Lappula occidentalis (S. Watson) Greene USA: Wyoming Southeastern Niobrara County; near Van Tassa... Ced. L. Porter 7259 1957-6-11
GH: 02059791 Oreocarya cana A. Nelson USA: Wyoming Southeastern Niobrara County.; near Van Tass... Ced. L. Porter 7256 1957-6-11
GH: 02060357 Oreocarya flava A. Nelson USA: Wyoming 20 miles north of Baggs Ced. L. Porter 7297 1957-6-20
Brassicaceae GH: 01153778 Alyssum alyssoides Linnaeus USA: Wyoming 11 miles west of Sundance Ced. L. Porter 7275 1957-6-12
GH: 01153786 Alyssum desertorum Stapf USA: Wyoming 20 miles north of Baggs Ced. L. Porter 7292 1957-6-20
GH: 01155219 Camelina microcarpa Andrzejowski ex de Candolle USA: Wyoming Southeastern Niobrara County. near Van Tasse... Ced. L. Porter 7266 1957-6-11
GH: 00992163 Draba streptocarpa A. Gray USA: Wyoming Laramie Range, Ragged Top Mt Ced. L. Porter 7303 1957-6-26
GH: 01687534 Physaria ludoviciana (Nuttall) O'Kane & Al-Shehbaz USA: Wyoming Southeastern Niobrara County. near Van Tasse... Ced. L. Porter 7264 1957-6-11
GH: 01691345 Physaria reediana O'Kane & Al-Shehbaz USA: Wyoming Big Hollow, 20 miles west of Laramie Ced. L. Porter 7349 1957-7-19
GH: 01736467 Strigosella africana (Linnaeus) Botschantzev USA: Wyoming 10 miles south of US 30 on road to Baggs Ced. L. Porter 7283 1957-6-20
Capparaceae GH: 01872675 Polanisia dodecandra trachysperma (Torrey & A. Gray) Iltis USA: Wyoming Alcova Reservoir on the North Platte River, ... Ced. L. Porter 7361 1957-7-25
Caprifoliaceae GH: 02185941 Viburnum lentago Linnaeus USA: Wyoming Bear Lodge Range 5 miles northeast of Hulett Ced. L. Porter 7271 1957-6-12
Chenopodiaceae GH: 02004815 Atriplex argentea Nuttall USA: Wyoming along the North Platte River near Fort Steel... Ced. L. Porter 7365 1957-7-26
GH: 01826217 Atriplex nuttallii S. Watson USA: Wyoming along the North Platte River near Fort Steel... Ced. L. Porter 7366 1957-7-26
GH: 01826211 Atriplex nuttallii S. Watson USA: Wyoming 20 miles north of Baggs Ced. L. Porter 7294 1957-6-20
GH: 01783001 Neokochia americana (S. Watson) G. L. Chu & S. C. Sanderson USA: Wyoming 20 miles north of Baggs Ced. L. Porter 7299 1957-6-20
GH: 01785298 Stutzia dioica (Nuttall) E. H. Zacharias USA: Wyoming 2 miles north of Upton. Ced. L. Porter 7277 1957-6-13
Cyperaceae GH: 02395472 Carex diandra Schrank USA: Wyoming Grand Teton National Park; in Swan Lake nort... Ced. L. Porter 7327 1957-7-9
GH: 01774455 Carex rostrata Stokes USA: Wyoming [data not captured] Ced. L. Porter 7328 1957-7-9
Fabaceae GH: 02064768 Astragalus bisulcatus haydenianus (A. Gray) Barneby USA: Wyoming about 20 miles north of Baggs, but common fr... Ced. L. Porter 7300 1957-6-20
GH: 02049048 Astragalus miser oblongifolius (Rydberg) Cronquist USA: Idaho South slope of Targhee Pass, at Howard Sprin... Ced. L. Porter 7345 1957-7-10
GH: 02048628 Astragalus sericoleucus A. Gray USA: Wyoming southeastern Niobrara County. near Van Tasse... Ced. L. Porter 7262 1957-6-11
GH: 01884993 Dalea candida Michaux ex Willdenow USA: Wyoming West side of Alcova Reservoir on the North P... Ced. L. Porter 7355 1957-7-25
GH: 02150073 Lathyrus polymorphus Nuttall USA: Wyoming near Van Tassel Ced. L. Porter 7253 1957-6-11
GH: 02150097 Lathyrus polymorphus incanus (J. G. Smith & Rydberg) C. L. Hitchcock USA: Wyoming 10 miles north of Wheatland Ced. L. Porter 7249 1957-6-5
GH: 02131015 Oxytropis lambertii Pursh USA: Wyoming Southeastern Niobrara County. near Van Tasse... Ced. L. Porter 7254 1957-6-11
GH: 02133725 Psoralidium lanceolatum (Pursh) Rydberg USA: Wyoming Alcova Reservoir on the North Platte River, ... Ced. L. Porter 7362 1957-7-25
GH: 02342665 Trifolium dasyphyllum Torrey & A. Gray USA: Wyoming Morton Pass, on Highway 34, near headwaters ... Ced. L. Porter 7304 1957-6-30
Haloragaceae GH: 01628366 Myriophyllum sibiricum Komarov USA: Wyoming Northern Albany County. About 6 miles northe... Ced. L. Porter 7368 1957-7-31
Hippuridaceae GH: 02000536 Hippuris vulgaris Linnaeus USA: Wyoming Southwestern Albany County. Medicine Bow Ran... Ced. L. Porter 7377 1957-8-2
Juncaceae GH: 02099376 Juncus balticus ater (Rydberg) Snogerup USA: Wyoming Southwestern Albany County. Medicine Bow Ran... Ced. L. Porter 7379 1957-8-2
GH: 02401136 Juncus ensifolius Wikström USA: Wyoming Laramie Range, Pole Mt. region. Ced. L. Porter 7374 1957-8-1
GH: 02400680 Juncus mertensianus Bongard USA: Wyoming Medicine Bow Range. Libby Flats Ced. L. Porter 7384 1957-8-7
GH: 02397623 Juncus tracyi Rydberg USA: Wyoming Casper Mountain, on Circle Drive. Ced. L. Porter 7391 1957-8-9
Malvaceae GH: 02199661 Sphaeralcea coccinea (Nuttall) Rydberg USA: Wyoming 20 miles north of Baggs Ced. L. Porter 7290 1957-6-20
Nyctaginaceae GH: 01642476 Abronia fragrans Nuttall ex Hooker USA: Wyoming Alcova Reservoir on the North Platte River, ... Ced. L. Porter 7360 1957-7-25
Onagraceae GH: 01780970 Oenothera albicaulis Nuttall USA: Wyoming on the short grass plains and low hills 10 m... Ced. L. Porter 7250 1957-6-5
Orobanchaceae GH: 01876239 Castilleja chromosa A. Nelson USA: Wyoming 20 miles north of Baggs; along Muddy Creek Ced. L. Porter 7288 1957-6-20
GH: 02081361 Orthocarpus luteus Nuttall USA: Wyoming Casper Mountain, on Circle Drive Ced. L. Porter 7415 1957-8-9
Plantaginaceae GH: 02212666 Callitriche palustris Linnaeus USA: Wyoming Medicine Bow Range. Small lake on north slop... Ced. L. Porter 7431 1957-8-26
GH: 02002167 Penstemon angustifolius Nuttall ex Pursh USA: Wyoming Southeastern Niobrara County.; Sand hills ne... Ced. L. Porter 7265 1957-6-11
GH: 02002982 Penstemon caespitosus Nuttall ex A. Gray USA: Wyoming 10 miles south of US 30 on road to Baggs. Ced. L. Porter 7284 1957-6-20
GH: 02118678 Penstemon cyaneus Pennell USA: Wyoming 1 mile north of junction near Moran, Grand T... Ced. L. Porter 7314 1957-7-7
GH: 02119522 Penstemon fremontii Torrey & A. Gray USA: Wyoming 20 miles north of Baggs; along Muddy Creek. Ced. L. Porter 7285 1957-6-20
Polemoniaceae GH: 01000870 Gilia tweedyi Rydberg USA: Wyoming 20 miles north of Baggs, along Muddy Creek Ced. L. Porter 7286 1957-6-20
GH: 01105898 Leptosiphon septentrionalis (H. Mason) J. M. Porter & L. A. Johnson USA: Wyoming 1 mile north of junction near Moran, Grand T... Ced. L. Porter 7315 1957-7-7
GH: 00954331 Linanthus pungens (Torrey) J. M. Porter & L. A. Johnson USA: Wyoming 20 miles north of Baggs, along Muddy Creek Ced. L. Porter 7287 1957-6-20
GH: 01571179 Phlox andicola E. E. Nelson USA: Wyoming Southeastern Niobrara County. near Van Tasse... Ced. L. Porter 7255 1957-6-11
GH: 01574715 Phlox multiflora A. Nelson USA: Wyoming Near the Flag Ranch Ced. L. Porter 7318 1957-7-8
GH: 01717104 Polemonium viscosum Nuttall USA: Wyoming Laramie Range, Ragged Top Mt., 25 miles nort... Ced. L. Porter 7302 1957-6-26
Polygonaceae GH: 01986717 Eriogonum ovalifolium purpureum (Nuttall) Durand USA: Wyoming 20 miles north of Baggs Ced. L. Porter 7301 1957-6-20
GH: 02004030 Rumex paucifolius Nuttall USA: Wyoming Medicine Bow Range, Brooklyn Lake. on the no... Ced. L. Porter 7383 1957-8-7
GH: 02004323 Rumex triangulivalvis (Danser) K. H. Rechinger USA: Wyoming Bear Lodge Range 5 mi NE of Hulett. Ced. L. Porter 7273 1957-6-12
GH: 02004473 Rumex venosus Pursh USA: Wyoming Southeastern Niobrara County. Near Van Tasse... Ced. L. Porter 7258 1957-6-11
Potamogetonaceae GH: 01734211 Stuckenia pectinata (Linnaeus) Börner USA: Wyoming Northern Albany County. About 6 miles northe... Ced. L. Porter 7371 1957-7-31
Pucciniaceae FH: 01125688 Uromyces hedysari-obscuri (de Candolle) Carrestia & Piccone USA: Wyoming Crazy Woman Creek, Big Horn Mts., west of Bu... Ced. L. Porter 7426 1957-8-10
Ranunculaceae GH: 01706557 Anemone canadensis Linnaeus USA: Wyoming On Laramie River near the Bluegrass diversio... Ced. L. Porter 7306 1957-7-4
GH: 01709446 Aquilegia flavescens S. Watson USA: Idaho South slope of Targhee Pass, at Howard Sprin... Ced. L. Porter 7329 1957-7-10
GH: 01836089 Ranunculus macounii Britton USA: Wyoming Casper Mountain, on Circle Drive Ced. L. Porter 7405 1957-8-9
GH: 01836090 Ranunculus macounii Britton USA: Wyoming Laramie Range, Pole Mt. region Ced. L. Porter 7373 1957-8-1
Rosaceae GH: 00994784 Holodiscus discolor dumosus (Nuttall ex Hooker) Dippel USA: Wyoming Northern Carbon County. Muddy Gap Ced. L. Porter 7357 1957-7-25
GH: 01590591 Physocarpus monogynus (Torrey) J. M. Coulter USA: Wyoming Canyon of North Fork of Sybille Creek Ced. L. Porter 7278 1957-6-18
GH: 01568197 Potentilla gracilis fastigiata (Nuttall) S. Watson USA: Wyoming near Moran Ced. L. Porter 7316 1957-7-8
GH: 01569555 Potentilla norvegica Linnaeus USA: Wyoming Laramie Range, Pole Mt. region Ced. L. Porter 7372 1957-8-1