Displaying 1 - 75 out of 667 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Abutilon incanum (Link) Sweet | J. J. Thornber 2310 | 19 May 1905 | United States of America | Arizona | Pima Co. Tumamoc Hill, Tucson… | — |
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| Abutilon incanum (Link) Sweet | J. J. Thornber 2586 | 21 May 1905 | United States of America | Arizona | Pima Co. Tucson Mountains | — |
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| Acacia farnesiana (L.) Willd. var. farnesiana | J. J. Thornber 7034 | Nov 1915 | United States of America | Arizona | Pima Co. Plant Introduction Garden,… | — |
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| Acacia millefolia S.Watson | J. J. Thornber 107 | 07 Dec 1903 | United States of America | Arizona | Total Wreck Mts. Total Wreck… | — |
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| Acalypha neomexicana Müll.Arg. | J. J. Thornber 174 | 22 Aug 1903 | United States of America | Arizona | Tucson. Campus, U. of A. | — |
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| Agoseris aurantiaca var. purpurea (A.Gray) Cronquist | J. J. Thornber 4176 | 16 Jun 1906 | United States of America | Arizona | Santa Catalina Mountains, Marshall Gulch,… | — |
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| Agoseris heterophylla (Nutt.) Greene | J. J. Thornber s.n. | 05 May 1905 | United States of America | Arizona | Pima Co. Stone Cabin Canyon,… | — |
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| Agoseris heterophylla var. quentinii G.I.Baird | J. J. Thornber 374 | 17 Apr 1903 | United States of America | Arizona | Santa Rita Mts., Stone Cabin… | — |
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| Alternanthera repens (L.) J.F.Gmel. | J. J. Thornber s.n. | 30 Aug 1905 | United States of America | Arizona | Pima Co. Empire Ranch, Santa… | — |
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| Alternanthera repens (L.) J.F.Gmel. | J. J. Thornber s.n. | 02 Sep 1905 | United States of America | Arizona | Pima Co. Empire Ranch, Santa… | — |
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| Amaranthus graecizans L. | J. J. Thornber 141 | 18 Sep 1903 | United States of America | Arizona | Tucson, Campus U. of A. | — |
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| Amaranthus obcordatus (A.Gray) Standl. | J. J. Thornber 200 | 22 Aug 1903 | United States of America | Arizona | Tucson, Campus U. of A. | — |
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| Ambrosia ambrosioides (Cav.) Payne | J. J. Thornber s.n. | 26 Mar 1905 | United States of America | Arizona | Pima Co. Sabino Canyon, Santa… | — |
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| Ambrosia confertiflora DC. | J. J. Thornber 41 | 24 Sep 1903 | United States of America | Arizona | Santa Cruz bottoms; Tucson. | — |
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| Ambrosia dumosa (A.Gray) W.W.Payne | J. J. Thornber s.n. | 14 May 1905 | United States of America | Arizona | Pima Co. gravelly mesas near… | — |
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| Ammannia robusta Heer & Regel | J. J. Thornber s.n. | 30 Aug 1905 | United States of America | Arizona | Cochise Co. Col. Hookers' Ranch,… | — |
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| Amorpha californica var. californica | J. J. Thornber 7317 | 22 Jul 1914 | United States of America | Arizona | Santa Catalina Mountains, Trip to… | — |
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| Amorpha fruticosa L. | J. J. Thornber 7309 | 24 Jul 1914 | United States of America | Arizona | Santa Catalina Mountains, Leatherwoods Camp | — |
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| Amorpha fruticosa L. | J. J. Thornber s.n. | 16 May 1903 | United States of America | Arizona | Pima Co. Fort Lowell, Rillito | — |
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| Amorpha fruticosa L. | J. J. Thornber s.n. | 27 May 1903 | United States of America | Arizona | Rillito Valley, Fort Lowell | — |
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| Amorpha fruticosa L. | J. J. Thornber s.n. | 27 May 1903 | United States of America | Arizona | Rillito Valley, Fort Lowell | — |
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| Amsinckia intermedia Fisch. & C.A.Mey. | J. J. Thornber 2149 | 02 Apr 1908 | United States of America | Arizona | Pima Co. Main campus, University… | — |
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| Amsinckia tessellata A.Gray | J. J. Thornber 2148 | 02 Apr 1908 | United States of America | Arizona | Pima Co. Campus, University of… | — |
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| Amsinckia tessellata A.Gray | J. J. Thornber 2151 | 01 Apr 1908 | United States of America | Arizona | Pima Co. Main campus, University… | — |
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| Androsace septentrionalis L. | J. J. Thornber s.n. | 14 Aug 1920 | United States of America | Arizona | Coconino Co. | — |
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| Anemopsis californica (Nutt.) Hook. & Arn. | J. J. Thornber 4232 | Aug 1910 | United States of America | Arizona | Pima Co. Agua-Caliente, near Tucson | — |
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| Anthemis cotula L. | J. J. Thornber 358 | 12 May 1903 | United States of America | Arizona | Santa Cruz bottoms, Tucson. | — |
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| Anthericum torreyi Baker | J. J. Thornber s.n. | Jul 1929 | United States of America | Arizona | Coconino Co. Long Valley | — |
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| Aquilegia desertorum (M.E.Jones) Cockerell ex A.Heller | J. J. Thornber s.n. | Jul 1929 | United States of America | Arizona | Coconino Co. Long Valley, S.… | — |
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| Aralia humilis Cav. | J. J. Thornber 182 | 9/12-03 | United States of America | Arizona | Stone Cabin Canyon, Santa Rita… | — |
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| Aralia humilis Cav. | J. J. Thornber 182 | 9/12-83 | United States of America | Arizona | Santa Rita Mts., Stone Cabin… | — |
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| Arbutus arizonica (A.Gray) Sarg. | J. J. Thornber 4124 | 19 Jun 1907 | United States of America | Arizona | Santa Catalina Mountains, Sabino Canyon. | — |
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| Arctostaphylos pungens Kunth | J. J. Thornber 7320 | 22 Jul 1914 | United States of America | Arizona | Santa Catalina Mountains, on trail… | — |
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| Arenaria lanuginosa var. saxosa (A.Gray) Zarucchi, R.L.Hartm. & Rabeler | J. J. Thornber 2083 | 11 Aug 1907 | United States of America | Arizona | Coconino Co. | — |
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| Argythamnia neomexicana Müll.Arg. | J. J. Thornber 2326 | 13 Aug 1904 | United States of America | Arizona | Pima Co. Campus, University of… | — |
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| Aristida | J. J. Thornber 187 | 9/12-'03 | United States of America | Arizona | Santa Rita Mts.; Stone Cabin… | — |
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| Aristida californica Thurb. | J. J. Thornber s.n. | 31 May 1905 | United States of America | Arizona | Pinal Co. Oracle Road, Pusch's… | — |
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| Aristida californica var. glabrata Vasey | J. J. Thornber 69 | 14 Sep 1903 | United States of America | Arizona | Santa Rita Mts.; Large Range… | — |
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| Aristida californica var. glabrata Vasey | J. J. Thornber s.n. | 20 Jun 1905 | United States of America | Arizona | Pima Co. Pusch's steam pump,… | — |
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| Aristida divaricata Humb. & Bonpl. ex Willd. | J. J. Thornber 28 | 09 Oct 1903 | United States of America | Arizona | Empire Ranch. | — |
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| Aristida havardii Vasey | J. J. Thornber s.n. | 28 Aug 1905 | United States of America | Arizona | Cochise Co. Sulphur Spring Valley,… | — |
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| Aristida purpurea Nutt. | J. J. Thornber s.n. | 25 Sep 1939 | Mexico | — | Camou Range, Agua Prieta, Mexico | — |
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| Aristida purpurea Nutt. | J. J. Thornber s.n. | 31 May 1905 | United States of America | Arizona | Punch's Steam Pump, Oracle Road. | — |
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| Aristida purpurea Nutt. var. purpurea | J. J. Thornber 4231 | 15 Aug 1915 | United States of America | Arizona | Pinal Co. Gravelly bluff near… | — |
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| Aristida purpurea var. longiseta (Steud.) Vasey | J. J. Thornber 4314 | 05 May 1906 | United States of America | Arizona | Cochise Co. Mescal | — |
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| Aristida purpurea var. longiseta (Steud.) Vasey | J. J. Thornber 4313 | 05 May 1906 | United States of America | Arizona | Cochise Co. Mescal | — |
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| Aristida purpurea var. longiseta (Steud.) Vasey | J. J. Thornber s.n. | 30 Aug 1905 | United States of America | Arizona | Pearce. Foothills. | — |
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| Aristida ternipes var. ternipes | J. J. Thornber 151 | 12 Sep 1903 | United States of America | Arizona | Tucson; Along old roads. | — |
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| Aristida ternipes var. ternipes | J. J. Thornber s.n. | 02 Sep 1905 | United States of America | Arizona | Santa Rita Mountains, Rozemont [Rosemont]. | — |
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| Artemisia dracunculus L. | J. J. Thornber s.n. | 07 Oct 1912 | United States of America | Arizona | Santa Catalina Mountains, Sabino Canyon. | — |
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| Artemisia dracunculus L. | J. J. Thornber s.n. | 07 Oct 1912 | United States of America | Arizona | Santa Catalina Mountains, Sabino Canyon. | — |
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| Artemisia dracunculus L. | J. J. Thornber s.n. | 28 Aug 1904 | United States of America | Arizona | Pima Co. Fort Lowel, along… | — |
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| Artemisia ludoviciana Nutt. | J. J. Thornber 50 | 28 Sep 1903 | United States of America | Arizona | Ft. Lowell. | — |
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| Artemisia ludoviciana Nutt. | J. J. Thornber 2346 | 09 Sep 1905 - 13 Sep 1905 | United States of America | Arizona | Pinal Co. Foothills of Santa… | — |
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| Asclepias asperula (Decne.) Woodson | J. J. Thornber s.n. | 07 May 1905 | United States of America | Arizona | Santa Rita Mountains, Stone Cabin… | — |
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| Asclepias linaria Cav. | J. J. Thornber s.n. | 09 Apr 1905 | United States of America | Arizona | Pima Co. Sabino Canyon, "The… | — |
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| Asclepias linaria Cav. | J. J. Thornber s.n. | 04 Apr 1905 | United States of America | Arizona | Santa Catalina Mountains, Sabino Canyon.… | — |
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| Asclepias nyctaginifolia A.Gray | J. J. Thornber s.n. | 21 Aug 1903 | United States of America | Arizona | Pima Co. Mesas | — |
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| Asclepias subverticillata (A.Gray) Vail | J. J. Thornber 2250 | 29 Aug 1905 | United States of America | Arizona | Sulphur Spring Valley, Col. Hookers'… | — |
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| Asclepias subverticillata (A.Gray) Vail | J. J. Thornber 2067 | 14 Jun 1905 | United States of America | Arizona | Pima Co. San Xavier Indian… | — |
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| Astragalus arizonicus A.Gray | J. J. Thornber s.n. | 05 May 1905 | United States of America | Arizona | Pima Co. Santa Rita Range… | — |
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| Astragalus didymocarpus var. dispermus (A.Gray) Jeps. | J. J. Thornber s.n. | 13 May 1905 | United States of America | Arizona | Bayless Repress Ranch, 12 miles… | — |
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| Astragalus didymocarpus var. dispermus (A.Gray) Jeps. | J. J. Thornber 4531 | 13 May 1905 | United States of America | Arizona | Pinal Co. Oracle, Bayless Represso… | — |
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| Astragalus lentiginosus var. australis Barneby | J. J. Thornber 3766 | 15 Mar 1905 | United States of America | Arizona | Tucson, Rillito | — |
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| Astragalus lentiginosus var. australis Barneby | J. J. Thornber s.n. | 15 Mar 1905 | United States of America | Arizona | Tucson, Rillito | — |
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| Astragalus nothoxys A.Gray | J. J. Thornber s.n. | 07 May 1905 | United States of America | Arizona | Santa Rita Mountains, Stone Cabin… | — |
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| Astragalus nothoxys A.Gray | J. J. Thornber 2174 | 17 Apr 1903 | United States of America | Arizona | Santa Rita Mountains, Stone Cabin… | — |
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| Astragalus nothoxys A.Gray | J. J. Thornber s.n. | 17 Apr 1903 | United States of America | Arizona | Santa Cruz Co. Santa Rita… | — |
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| Astragalus wootonii E.Sheld. var. wootonii | J. J. Thornber 2176 | 17 Apr 1903 | United States of America | Arizona | Santa Rita foot hills, Large… | — |
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| Astragalus wootonii E.Sheld. var. wootonii | J. J. Thornber 744 | 30 Apr 1913 | United States of America | Arizona | Tucson, Rillito Valley, near College… | — |
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| Astrolepis integerrima (Hook.) D.M.Benham & Windham | J. J. Thornber 4325 | 20 Apr 1905 | United States of America | Arizona | Pima Co. Tucson Mountains, Tucson. | — |
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| Athyrium filix-femina var. californicum Butters | J. J. Thornber 7316 | 24 Jul 1914 | United States of America | Arizona | Santa Catalina Mountains, Marshall Gulch | — |
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| Atrichum altecristatum (Renauld & Cardot) Smyth & L.Smyth | J. J. Thornber | Sep 1899 | United States of America | Nebraska | Otoe Co. Nebraska City | — |
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| Atrichum altecristatum (Renauld & Cardot) Smyth & L.Smyth | J. J. Thornber | Sep 1899 | United States of America | Nebraska | Otoe Co. Nebraska City | — |
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| Atriplex canescens (Pursh) Nutt. | J. J. Thornber 111a | 08 Sep 1903 | United States of America | Arizona | Ft. Lowell | — |
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