Displaying 1951 - 2000 out of 2049 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Microseris lindleyi (DC.) A.Gray | R. R. Halse 7125 | 25 Mar 2007 | United States of America | California | Lake Co. Along State Hwy.… | — |
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| Senecio serra Hook. var. serra | R. R. Halse 3342 | 08 Aug 1986 | United States of America | Oregon | Crook Co. Ochoco National Forest,… | — |
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| Onopordum acanthium L. | R. R. Halse 3359 | 17 Aug 1986 | United States of America | Oregon | Baker Co. Common along State… | — |
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| Oreostemma alpigenum (Torr. & A.Gray) Greene var. alpigenum | R. R. Halse 7531 | 27 Aug 2008 | United States of America | Oregon | Jefferson Co. Cascade Range; Deschutes… | — |
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| Drymocallis lactea var. austiniae (Jeps.) Ertter | R. R. Halse 9739 | 15 Jun 2016 | United States of America | Oregon | Deschutes Co. Deschutes National Forest;… | — |
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| Marsilea vestita Hook. & Grev. | R. R. Halse 7873 | 28 Sep 2016 | United States of America | Oregon | Jackson Co. Off of State… | — |
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| Trifolium longipes var. reflexum A.Nelson | R. R. Halse 9757 | 28 Jun 2016 | United States of America | Idaho | Custer Co. Along State Hwy.21… | — |
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| Arnica chamissonis Less. | R. R. Halse 9792 | 27 Jul 2016 | United States of America | Oregon | Klamath Co. Deschutes National Forest;… | — |
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| Packera cana (Hook.) W.A.Weber & Á.Löve | R. R. Halse 5879 | 21 Jul 2000 | United States of America | Oregon | Deschutes Co. Along U.S. Hwy.… | — |
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| Rudbeckia occidentalis Nutt. | R. R. Halse 3733 | 07 Aug 1988 | United States of America | Wyoming | Teton Co. Targhee National Forest,… | — |
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| Psathyrotes annua (Nutt.) A.Gray | R. R. Halse 4250 | 30 Jul 1991 | United States of America | Utah | Millard Co. Along U.S. Hwy.… | — |
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| Nasturtium microphyllum Boenn. ex Rchb. | R. R. Halse 9787 | 29 Jun 2016 | United States of America | Oregon | Crook Co. Ochoco National Forest;… | — |
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| Stachys palustris L. | R. R. Halse 6288 | 29 Jul 2002 | United States of America | Colorado | Grand Co. Along U.S. Hwy.… | — |
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| Gentianopsis simplex (A.Gray) Iltis | R. R. Halse 9805 | 27 Jul 2016 | United States of America | Oregon | Klamath Co. South end of… | — |
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| Eriogonum microthecum var. laxiflorum Hook. | R. R. Halse 2322 | 28 Aug 1980 | United States of America | Oregon | Deschutes Co. Along U.S. Hwy.… | — |
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| Eriogonum microthecum var. simpsonii (Benth.) Reveal | R. R. Halse 541 | 25 Jul 1971 | United States of America | Arizona | Apache Co. area between Wheatfields… | — |
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| Eriogonum microthecum var. simpsonii (Benth.) Reveal | R. R. Halse 541 | 25 Jul 1971 | United States of America | Arizona | Apache Co. Canyon del Chelly… | — |
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| Stachys rigida var. rigida | R. R. Halse 2354 | 09 Jul 1981 | United States of America | Oregon | Benton Co. N.E. Corvallis, west… | — |
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| Palafoxia texana DC. | R. R. Halse 3979 | 30 Nov 1989 | United States of America | Texas | Kenedy Co. Along U.S. Hwy.… | — |
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| Eriogonum multiflorum var. multiflorum | R. R. Halse 3980 | 30 Nov 1989 | United States of America | Texas | Kenedy Co. Along U.S. Hwy.… | — |
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| Raillardella argentea (A.Gray) A.Gray | R. R. Halse 8043 | 29 Jul 2010 | United States of America | Oregon | Deschutes Co. Three Sisters Wilderness;… | — |
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| Eriogonum ovalifolium var. purpureum (Nutt.) A.Nelson | R. R. Halse 9149 | 23 Jun 2014 | United States of America | Wyoming | Natrona Co. Along County Road… | — |
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| Persicaria maculosa Gray | R. R. Halse 4558 | 14 Sep 1992 | United States of America | Washington | Klickitat Co. Lyle; on a… | — |
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| Eriogonum pyrolifolium var. coryphaeum Torr. & A.Gray | R. R. Halse 7541 | 27 Aug 2008 | United States of America | Oregon | Jefferson Co. Deschutes National Forest;… | — |
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| Eriogonum racemosum Nutt. | R. R. Halse 6631 | 13 Jul 2004 | United States of America | New Mexico | Colfax Co. Along U.S. Hwy.… | — |
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| Eriogonum spergulinum var. reddingianum (M.E.Jones) J.T.Howell | R. R. Halse 4242 | 28 Jul 1991 | United States of America | Oregon | Klamath Co. About ½ mile… | — |
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| Polygonum austiniae Greene | R. R. Halse 7934 | 15 Jun 2010 | United States of America | Oregon | Grant Co. Along U.S. Hwy.… | — |
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| Polygonum aviculare subsp. buxiforme (Small) Costea & Tardif | R. R. Halse 8970 | 04 Sep 2013 | United States of America | Idaho | Idaho Co. Clearwater National Forest;… | — |
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| Chaenactis glabriuscula var. gracilenta (Greene) D.D.Keck | R. R. Halse 9915 | 22 Apr 2017 | United States of America | California | Lake Co. Coast Range; Mendocino… | — |
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| Senna covesii (A.Gray) H.S.Irwin & Barneby | R. R. Halse s.n. | 22 May 1973 | United States of America | Arizona | Pima Co. Growing along the… | — |
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| Spergularia rubra (L.) J.Presl & C.Presl | R. R. Halse 4579 | 13 Nov 1992 | United States of America | Oregon | Douglas Co. East Carter Lake… | — |
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| Cirsium arvense (L.) Scop. | R. R. Halse 3332 | 13 Jul 1986 | United States of America | Oregon | Benton Co. Witham Hill | — |
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| Atriplex argentea var. hillmanii M.E.Jones | R. R. Halse 4248 | 29 Jul 1991 | United States of America | Nevada | Lander Co. Along U.S. Hway.… | — |
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| Homalothecium nuttallii (Wilson) A.Jaeger | R. R. Halse 4366 | 21 Nov 1991 | United States of America | Oregon | Benton Co. Corvallis, Witham Hill… | — |
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| Polypodium calirhiza S.A.Whitmore & A.R.Sm. | R. R. Halse 7580 | 04 Apr 2009 | United States of America | Oregon | Curry Co. Along U.S. Hwy.… | — |
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| Penstemon speciosus Douglas ex Lindl. | R. R. Halse 9721 | 29 May 2016 | United States of America | California | Siskiyou Co. Along Hilt Road… | — |
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| Astragalus inflexus Douglas ex Hook. | R. R. Halse 7661 | 16 Jun 2009 | United States of America | Oregon | Wallowa Co. Hells Canyon National… | — |
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| Didymodon vinealis (Brid.) R.H.Zander | R. R. Halse 4406 | 29 Dec 1991 | United States of America | Washington | — | |||||
| Tofieldia glutinosa subsp. brevistyla C.L.Hitchc. | R. R. Halse 3704 | 01 Aug 1988 | United States of America | Oregon | Marion Co. Cascade Range, Mt.… | — |
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| Claytonia arenicola L.F.Hend. | R. R. Halse 1885 | 14 Apr 1979 | United States of America | Idaho | Adams Co. Hells Canyon of… | — |
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| Claytonia arenicola L.F.Hend. | R. R. Halse 1891 | 21 Apr 1979 | United States of America | Idaho | Idaho Co. On a hillside… | — |
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| Castilleja campestris (Benth.) T.I.Chuang & Heckard | R. R. Halse 1838 | 09 Jun 1978 | United States of America | Oregon | Harney Co. Along U.S. Highway… | — |
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| Senecio eremophilus var. eremophilus | R. R. Halse 4274 | 06 Aug 1991 | United States of America | Colorado | La Plata Co. San Juan… | — |
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| Orthocarpus luteus Nutt. | R. R. Halse 4270 | 04 Aug 1991 | United States of America | Colorado | San Juan Co. San Juan… | — |
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| Phacelia hastata Douglas ex Lehm. var. hastata | R. R. Halse 4273 | 04 Aug 1991 | United States of America | Colorado | San Juan Co. San Juan… | — |
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| Bahia oblongifolia (A.Gray) A.Gray | R. R. Halse 4268 | 03 Aug 1991 | United States of America | New Mexico | San Juan Co. Along County… | — |
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| Isocoma tenuisecta Greene | R. R. Halse 4269 | 03 Aug 1991 | United States of America | New Mexico | San Juan Co. Along County… | — |
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| Pedicularis procera A.Gray | R. R. Halse 4259 | 01 Aug 1991 | United States of America | Colorado | San Juan Co. San Juan… | — |
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| Pedicularis procera A.Gray | R. R. Halse 4259 | 01 Aug 1991 | United States of America | Colorado | San Juan Co. San Juan… | — |
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| Polemonium foliosissimum A.Gray | R. R. Halse 4261 | 01 Aug 1991 | United States of America | Colorado | San Juan Co. San Juan… | — |
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