Displaying 1 - 50 out of 2049 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Abies amabilis Douglas ex J.Forbes | R. R. Halse 9294 | 11 Sep 2014 | United States of America | Oregon | Lane Co. Cascade Range; Willamette… | — |
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| Abies amabilis Douglas ex J.Forbes | R. R. Halse 9294 | 11 Sep 2014 | United States of America | Oregon | Lane Co. Cascade Range; Willamette… | — |
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| Abies procera Rehder | R. R. Halse 3158 | 12 Jul 1985 | United States of America | Oregon | Polk Co. In the Coast… | — |
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| Abronia mellifera Douglas ex Hook. var. mellifera | R. R. Halse 1926 | 19 May 1979 | United States of America | Idaho | Owyhee Co. Along Mud Flat… | — | ||||
| Acacia constricta Benth. | R. R. Halse s.n. | 19 May 1973 | United States of America | Arizona | Pima Co. At the end… | — |
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| Acacia longifolia (Andrews) Willd. | R. R. Halse 3539 | 14 Feb 1988 | United States of America | California | Solano Co. Vallejo, along Maritime… | — |
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| Acacia rigidula Benth. | R. R. Halse 4430 | 23 Feb 1992 | United States of America | Texas | Zapata Co. Along State Hwy.… | — |
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| Acalypha hederacea Torr. | R. R. Halse 4428 | 23 Feb 1992 | United States of America | Texas | Hidalgo Co. Along U.S. Hwy.… | — |
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| Acer glabrum var. douglasii (Hook.) Dippel | R. R. Halse 1865 | 15 Aug 1978 | United States of America | Idaho | Boise Co. Boise National Forest,… | — |
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| Acer glabrum var. douglasii (Hook.) Dippel | R. R. Halse 6863 | 21 Jul 2005 | United States of America | Oregon | Linn Co. | — |
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| Acer glabrum var. douglasii (Hook.) Dippel | R. R. Halse 6373 | 17 Jun 2003 | United States of America | Oregon | Wallowa Co. | — |
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| Acer glabrum var. torreyi (Greene) Smiley | R. R. Halse 8504 | 27 May 2012 | United States of America | Oregon | Jackson Co. Along Dead Indian… | — |
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| Acer macrophyllum Pursh | R. R. Halse 7628 | 25 May 2009 | United States of America | Oregon | Douglas Co. Along State Hwy.… | — |
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| Acer macrophyllum Pursh | R. R. Halse 3371 | 08 Sep 1986 | United States of America | Washington | Klickitat Co. Along State Hwy.… | — |
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| Acer negundo L. | R. R. Halse 10392 | 12 Jul 2018 | United States of America | Utah | Morgan Co. By the Weber… | — |
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| Achillea filipendulina Lam. | R. R. Halse 8649 | 08 Aug 2012 | United States of America | Oregon | Douglas Co. Winston; along State… | — |
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| Achillea filipendulina Lam. | R. R. Halse 8649 | 08 Aug 2012 | United States of America | Oregon | Douglas Co. Winston; along State… | — |
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| Achillea millefolium L. | R. R. Halse 9839 | 09 Sep 2016 | United States of America | Idaho | Fremont Co. Targhee National Forest;… | — |
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| Achillea millefolium L. | R. R. Halse 9109 | 17 Jun 2014 | United States of America | Wyoming | Crook Co. Along State Hwy.… | — |
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| Achnatherum hymenoides (Roem. & Schult.) Barkworth | R. R. Halse 7991 | 29 Jun 2010 | United States of America | Oregon | Lake Co. Along the Christmas… | — |
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| Achnatherum hymenoides (Roem. & Schult.) Barkworth | R. R. Halse 3608 | 24 May 1988 | United States of America | Washington | Klickitat Co. Along the Dalles-port… | — |
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| Achnatherum lemmonii (Vasey) Barkworth | R. R. Halse 6839 | 01 Jul 2005 | United States of America | Oregon | Union Co. Umatilla National Forest;… | — |
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| Achnatherum lemmonii (Vasey) Barkworth | R. R. Halse 5729 | 25 Apr 2000 | United States of America | Washington | Klickitat Co. Along State Hwy.… | — |
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| Achnatherum lemmonii (Vasey) Barkworth | R. R. Halse 6164 | 27 May 2002 | United States of America | Oregon | Benton Co. Butterfly Meadow, on… | — |
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| Achnatherum nelsonii (Scribn.) Barkworth | R. R. Halse 7526 | 27 Aug 2008 | United States of America | Oregon | Jefferson Co. Cascade Range, Deschutes… | — |
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| Achnatherum occidentale (Thurb. ex S.Watson) Barkworth | R. R. Halse 4466 | 24 May 1992 | United States of America | Washington | Klickitat Co. Along the Klickitat-Appleton… | — |
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| Achnatherum thurberianum (Piper) Barkworth | R. R. Halse 6414 | 20 Jun 2003 | United States of America | Oregon | Wheeler Co. Along U.S. Hwy.… | — |
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| Achnatherum thurberianum (Piper) Barkworth | R. R. Halse 6558 | 15 Jun 2004 | United States of America | Oregon | Malheur Co. Along Whitehorse Ranch… | — |
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| Aconitum columbianum Nutt. subsp. columbianum | R. R. Halse 3744 | 10 Aug 1988 | United States of America | Wyoming | Teton Co. Targhee National Forest,… | — |
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| Aconogonon davisiae (W.H.Brewer ex A.Gray) Soják | R. R. Halse 7507 | 11 Aug 2008 | United States of America | Oregon | Jefferson Co. Cascade Range; Deschutes… | — |
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| Adiantum pedatum L. | R. R. Halse 4689 | 18 Aug 1993 | United States of America | Oregon | Linn Co. Cascade Range; Willamette… | — |
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| Aegilops cylindrica Host | R. R. Halse 7668 | 16 Jun 2009 | United States of America | Oregon | Wallowa Co. Hells Canyon National… | — |
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| Aegilops cylindrica Host | R. R. Halse 6223 | 19 Jun 2002 | United States of America | Washington | Asotin Co. Along the Grande… | — |
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| Aegilops cylindrica Host | R. R. Halse 5219 | 01 Jun 1997 | United States of America | Oregon | Linn Co. Just east of… | — |
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| Aegilops speltoides Tausch | R. R. Halse 5215B | 26 May 1997 | United States of America | Oregon | Linn Co. Just east of… | — |
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| Aegilops umbellata Zhuk. | R. R. Halse 5214 | 26 May 1997 | United States of America | Oregon | Linn Co. Just east of… | — |
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| Aesculus californica (Spach) Nutt. | R. R. Halse 3831 | 13 May 1989 | United States of America | California | Napa Co. Along State Hwy.… | — |
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| Agastache pallidiflora subsp. neomexicana var. neomexicana | R. R. Halse 4267 | 02 Aug 1991 | United States of America | Colorado | Ouray Co. In the Uncampahgre… | — |
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| Agoseris apargioides subsp. apargioides | R. R. Halse 5283 | 05 Sep 1997 | United States of America | Oregon | Lincoln Co. Newport; along the… | — |
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| Agoseris glauca var. dasycephala (Torr. & A.Gray) Jeps. | R. R. Halse 1874 | 28 Aug 1978 | United States of America | Idaho | Valley Co. Along State Hwy.… | — |
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| Agoseris glauca var. dasycephala (Torr. & A.Gray) Jeps. | R. R. Halse 9841 | 09 Sep 2016 | United States of America | Idaho | Fremont Co. Targhee National Forest;… | — |
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| Agoseris grandiflora (Nutt.) Greene | R. R. Halse 5274 | 28 Jul 1997 | United States of America | Oregon | Yamhill Co. In the Coast… | — |
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| Agoseris heterophylla (Nutt.) Greene | R. R. Halse 4627 | 19 Jun 1993 | United States of America | Washington | Klickitat Co. Along Klickitat-Appleton Road… | — |
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| Agoseris heterophylla (Nutt.) Greene var. heterophylla | R. R. Halse 6792 | 24 Jun 2005 | United States of America | Oregon | Umatilla Co. Umatilla National Forest;… | — |
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| Agoseris monticola Greene | R. R. Halse 8093 | 31 Aug 2010 | United States of America | Nevada | Douglas Co. Along State Hwy.… | — |
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| Agoseris retrorsa (Benth.) Greene | R. R. Halse 4611 | 30 May 1993 | United States of America | Washington | Klickitat Co. Along the Klickitat-Appleton… | — |
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| Agropyron cristatum (L.) Gaertn. | R. R. Halse 5092 | 08 Jul 1996 | United States of America | Montana | Powell Co. Along U.S. Hwy.… | — |
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| Agropyron cristatum (L.) Gaertn. | R. R. Halse 5268 | 16 Jul 1997 | United States of America | Washington | Adams Co. Along State Hwy.… | — |
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| Agrostis exarata Trin. | R. R. Halse 6869 | 11 Aug 2005 | United States of America | Oregon | Linn Co. Cascade Range; Willamette… | — |
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| Agrostis exarata Trin. | R. R. Halse 2678 | 27 Jun 1983 | United States of America | Oregon | Polk Co. Along a dirt… | — |
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