Displaying 1 - 75 out of 10404 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Calochortus acuminatus Rydb. | P. A. Rydberg 2600 | 05 Aug 1895 | United States of America | Montana | Lima. | holotype |
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| Pachylophus hirsutus Rydb. | P. A. Rydberg s.n. | 18 Aug 1895 | United States of America | Colorado | Georgetown. | holotype |
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| Agoseris parviflora (Nutt.) D.Dietr. | P. A. Rydberg 6022 | 09 Jun 1905 | United States of America | Utah | Salt Lake City. Hills and… | — |
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| Agoseris parviflora (Nutt.) D.Dietr. | P. A. Rydberg 6133 | June 9 and 12, 1905 | United States of America | Utah | Salt Lake City. City Creek… | — |
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| Cirsium | P. A. Rydberg s.n. | 30 Jul 1921 | United States of America | New Jersey | Bergen Co. | — |
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| Chara crassicaulis Schleich. | P. A. Rydberg s.n. | 27 Jun 1895 | United States of America | Idaho | Beaver Canyon | — |
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| Chara crassicaulis Schleich. | P. A. Rydberg s.n. | 27 Jun 1895 | United States of America | Idaho | Beaver Canyon | — |
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| Quercus welshii R.A.Denham | P. A. Rydberg 8506 | 03 Jul 1911 | United States of America | Utah | Grand Co. Pritchet Canyon | — |
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| Quercus welshii R.A.Denham | P. A. Rydberg 9462 | 04 Aug 1911-06 Aug 1911 | United States of America | Utah | San Juan Co. Armstrong and… | — |
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| Carex athrostachya Olney | P. A. Rydberg 2032 | 25 Jun 1895 | United States of America | Wyoming | Green River. | — |
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| Carex brunnescens (Pers.) Poir. | P. A. Rydberg 2239 | 25 Jul 1895 | United States of America | Montana | Bozeman. | — |
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| Carex crawei Dewey ex Torr. | P. A. Rydberg s.n. | 06 Aug 1895 | United States of America | Montana | Lima. | — |
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| Carex rostrata Stokes | P. A. Rydberg 2122 | 09 Jul 1895 | United States of America | Montana | Deer Lodge. | — |
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| Carex rostrata Stokes | P. A. Rydberg s.n. | 09 Jul 1895 | United States of America | Montana | Deer Lodge. | — |
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| Carex norvegica Retz. | P. A. Rydberg 2373 | 17 Aug 1895 | United States of America | Colorado | Georgetown. | — |
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| Rumex occidentalis S.Watson | P. A. Rydberg 14 | 08 Jul 95 | United States of America | Montana | Deer Lodge. | — |
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| Salix monticola Bebb | P. A. Rydberg s.n. | 17 Aug 95 | United States of America | Colorado | Georgetown. | — |
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| Alnus serrulata (Aiton) Willd. | P. A. Rydberg 8176 | 25 Aug 1908 | United States of America | Virginia | Smyth Co. Marion. | — |
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| Leersia oryzoides (L.) Sw. | P. A. Rydberg 413 | 18 Aug 1891 | United States of America | Nebraska | Cheyenne Co. Lodge Pole Creek,… | — |
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| Sagittaria cuneata E.Sheld. | P. A. Rydberg 388 | 01 Aug 1891 | United States of America | Nebraska | Scotts Bluff Co. Horse Creek | — |
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| Heuchera cylindrica Douglas ex Hook. | P. A. Rydberg 2681 | 23 Jul 1895 | United States of America | Montana | Gallatin Co. | — |
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| Phyla cuneifolia (Torr.) Greene | P. A. Rydberg 306 | 18 Jun 1891 | United States of America | Nebraska | Phelps Co. | — |
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| Croton texensis (Klotzsch) Müll.Arg. | P. A. Rydberg 998 | 09 Aug 1892 | United States of America | South Dakota | Hot Springs | — |
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| Euphorbia davidii Subils | P. A. Rydberg 995 | 09 Aug 1892 | United States of America | South Dakota | Hot Springs | — |
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| Cypripedium parviflorum var. makasin (Farw.) Sheviak | P. A. Rydberg s.n. | 1 Jun 1903 | United States of America | New York | Westchester Co. Mount Vernon | — |
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| Apocynum sibiricum Jacq. | P. A. Rydberg 226 | 13 Jun 1891 | United States of America | Nebraska | Kearney Co. | — |
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| Apocynum sibiricum Jacq. | P. A. Rydberg 226 | 13 Jun 1891 | United States of America | Nebraska | Kearney Co. | — |
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| Fallopia scandens (L.) Holub var. scandens | P. A. Rydberg 351 | 26 Aug 1891 | United States of America | Nebraska | Deuel Co. McColligan Canon [McCuligan… | — |
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| Blitum nuttallianum Schult. | P. A. Rydberg 6342 | 27 Jun 1905 | United States of America | Utah | Big Cottonwood Canyon, below Silver… | — |
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| Blitum nuttallianum Schult. | P. A. Rydberg 7607 | 10 Aug 1905 | United States of America | Utah | South end of Fish Lake | — |
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| Blitum nuttallianum Schult. | P. A. Rydberg 8907 | 14 Jul 1911 | United States of America | Utah | Ridge north of Brumley Creek,… | — |
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| Blitum nuttallianum Schult. | P. A. Rydberg 9650 | 11 Aug 1911 | United States of America | Utah | Head of Dry Wash, Abajo… | — |
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| Penstemon angustifolius var. caudatus (A.Heller) Rydb. | P. A. Rydberg 5644 | 22 May 1900 | United States of America | Colorado | Huerfano Co. Butte, 5 miles… | — |
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| Penstemon rostriflorus Kellogg | P. A. Rydberg 9373 | 02 Aug 1911 | United States of America | Utah | San Juan Co. Western Bear's… | — |
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| Penstemon rostriflorus Kellogg | P. A. Rydberg 9374 | 02 Aug 1911 | United States of America | Utah | San Juan Co. Western Bear's… | — |
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| Eriogonum wetherillii Eastw. | P. A. Rydberg 9905 | August 25-29, 1911 | United States of America | Utah | Along San Juan River, near… | — |
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| Penstemon angustifolius var. caudatus (A.Heller) Rydb. | P. A. Rydberg 5643 | 31 May 1900 | United States of America | Colorado | Huerfano Co. Cuchara River, above… | — |
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| Lupinus monticola Rydb. | P. A. Rydberg 4447 | 22 Jul 1897 | United States of America | Montana | Mountains near Indian Creek | holotype |
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| Lupinus monticola Rydb. | P. A. Rydberg 4447 | 22 Jul 1897 | United States of America | Montana | Mountains near Indian Creek | isotype |
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| Eremogone congesta (Nutt.) Ikonn. var. congesta | P. A. Rydberg 9256 | 28 Jul 1911-29 Jul 1911 | United States of America | Utah | South side of Abajo Mountains. | — |
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| Eriogonum cernuum Nutt. var. cernuum | P. A. Rydberg 9273 | 28 Jul 1911-29 Jul 1911 | United States of America | Utah | South side of Abajo Mountains. | — |
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| Vicia producta Rydb. | P. A. Rydberg 6006 | 22 May 1900 | United States of America | Colorado | Butte, 5 miles southwest of… | isotype |
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| Chlorocrambe hastata (S.Watson) Rydb. | P. A. Rydberg 6065 | 11 Jun 1905 | United States of America | Utah | Red Rock Cañon, near Salt… | — |
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| Descurainia incisa (Engelm. ex A.Gray) Britton var. incisa | P. A. Rydberg 6090 | 11 Jun 1905 | United States of America | Utah | Red Rock Cañon, near Salt… | — |
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| Castilleja sulphurea Rydb. | P. A. Rydberg 4966 | 20 Aug 1897 | United States of America | Montana | Electric Peak. | type |
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| Quercus gambelii Nutt. | P. A. Rydberg 8500 | 03 Jul 1911 | United States of America | Utah | Grand River Canyon below Moab | — |
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| Lupinus Rydb. lupinus | P. A. Rydberg 9363 | 02 Aug 1911 | — | — | holotype |
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| Ribes aureum Pursh | P. A. Rydberg 6080 | 11 May 1900 | United States of America | Colorado | El Paso Co. Manitou | — |
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| Atriplex canescens (Pursh) Nutt. | P. A. Rydberg 9960 | 25 Aug 1911-29 Aug 1911 | United States of America | Utah | Along San Juan River, near… | — |
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| Chrysopsis depressa Rydb. | P. A. Rydberg 5067 | 04 Aug 1897 | United States of America | Wyoming | Teton Co. Yellowstone Park: Lower… | holotype |
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| Ephedra torreyana S.Watson | P. A. Rydberg 8312 | 24 Jun 1911 | United States of America | Utah | Desert Station | — |
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| Krascheninnikovia lanata (Pursh) A.Meeuse & A.Smit | P. A. Rydberg 8313 | 24 Jun 1911 | United States of America | Utah | Desert Station | — |
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| Atriplex corrugata S.Watson | P. A. Rydberg 8314 | 24 Jun 1911 | United States of America | Utah | Desert Station | — |
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| Atriplex gardneri var. cuneata (A.Nelson) S.L.Welsh | P. A. Rydberg 8316 | 24 Jun 1911 | United States of America | Utah | Desert Station | — |
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| Salix nivalis var. saximontana (Rydb.) C.K.Schneid. | P. A. Rydberg 8832 | 11 Jul 1911 | United States of America | Utah | Gold Basin, LaSal Mountains | — |
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| Pinus contorta var. latifolia Engelm. | P. A. Rydberg 3525 | 07 Aug 1897 | United States of America | Wyoming | Lone Star Geyser Basin, Yellowstone… | — |
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| Caltha leptosepala DC. | P. A. Rydberg 6648 | 05 Jul 1905 | United States of America | Utah | Divide between Big Cottonwood Canyon… | — |
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| Penstemon humilis var. brevifolius A.Gray | P. A. Rydberg 6654 | 05 Jul 1905 | United States of America | Utah | Divide between Big Cottonwood Canyon… | — |
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| Ranunculus eschscholtzii Schltdl. | P. A. Rydberg 6676 | 05 Jul 1905 | United States of America | Utah | Divide between Big Cottonwood Canyon… | — |
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| Draba aurea Vahl ex Hornem. | P. A. Rydberg 6679 | 05 Jul 1905 | United States of America | Utah | Divide between Big Cottonwood Canyon… | — |
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| Penstemon gracilis Nutt. subsp. gracilis | P. A. Rydberg 921 | 06 Jul 1892 | United States of America | South Dakota | Lead City, Black Hills | — |
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| Salix perrostrata Rydb. | P. A. Rydberg 1018 | 23 Jun 1892 | United States of America | South Dakota | Black Hills; Hermosa | holotype |
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| Salix perrostrata Rydb. | P. A. Rydberg 1018 | 23 Jun 1892 | United States of America | South Dakota | Black Hills; Hermosa | type |
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| Eriogonum depauperatum Small | P. A. Rydberg 970 | 23 Jun 1892 | United States of America | South Dakota | Black Hills; Hermosa | holotype |
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| Eriogonum gordonii Benth. | P. A. Rydberg 8317 | 24 Jun 1911 | United States of America | Utah | Desert Station. | — |
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| Eriogonum fusiforme Small | P. A. Rydberg 8319 | 24 Jun 1911 | United States of America | Utah | Desert Station. | — |
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| Eriogonum cernuum Nutt. var. cernuum | P. A. Rydberg 9122 | 22 Jul 1911 | United States of America | Utah | Along road between Moab and… | — |
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| Eriogonum brevicaule Nutt. var. brevicaule | P. A. Rydberg s.n. | 13 Aug 1895 | United States of America | Utah | Summit Co. Echo. | — |
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| Eriogonum arcuatum Greene var. arcuatum | P. A. Rydberg s.n. | 13 Aug 1895 | United States of America | Utah | Summit Co. Echo. | — |
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| Heuchera alba Rydb. | P. A. Rydberg 9078 | 17 Jun 1925 | United States of America | West Virginia | Pendleton Co. Snowy Mountain; Alleghany… | isotype |
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| Heuchera alba Rydb. | P. A. Rydberg 9078 | 17 Jun 1925 | United States of America | West Virginia | Pendleton Co. Snowy Mountain; Alleghany… | isotype |
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| Homalobus hylophilus Rydb. | P. A. Rydberg 4490 | 17 Jun 1897 | United States of America | Montana | Bridger Mountains | holotype |
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| Penstemon tubiflorus Nutt. var. tubiflorus | P. A. Rydberg 390 | 29 Jun 1929 | United States of America | Kansas | Vicinity of Caney, 2 miles… | — |
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| Arabis drummondii A.Gray | P. A. Rydberg 6851 | 10 Jul 1905 | United States of America | Utah | Headwaters of Little Cottonwood Creek,… | — |
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| Descurainia pinnata var. osmiarum (Cockerell) Shinners | P. A. Rydberg 9232 | 28-29 JULY 1911 | United States of America | Utah | San Juan Co. South side… | — |
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