Displaying 1 - 75 out of 1653 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Abronia angustifolia Greene | R. S. Ferris 2453 | 03 Jul 1921 | United States of America | Texas | Hudspeth Co. Between Nulo and… | — |
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| Abronia turbinata Torr. ex S.Watson | R. S. Ferris 13122 | 15 Sep 1957 | United States of America | California | Mono Co. In loose sand… | — |
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| Abronia turbinata Torr. ex S.Watson | R. S. Ferris 7895 | 11 Jun 1930 | United States of America | California | Inyo Co. Sand dunes, Keeler-Darwin… | — |
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| Abutilon avicennae Gaertn. | R. S. Ferris 3290 | 15 Aug 1921 | United States of America | Texas | Limestone Co. | — |
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| Abutilon malacum S.Watson | R. S. Ferris 2425 | 29 Jun 1921 | United States of America | Texas | El Paso Co. Scenic drive… | — |
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| Abutilon texense Torr. & A.Gray | R. S. Ferris 3007 | 25 Jul 1921 | United States of America | Texas | Pecos Co. near Pecos River… | — |
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| Acacia angustissima (Mill.) Kuntze | R. S. Ferris 2865 | 15 Jul 1921 - 18 Jul 1921 | United States of America | Texas | Brewster Co. eastern slope of… | — |
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| Acacia angustissima var. chisosiana Isely | R. S. Ferris 2745 | 13 Jul 1921 | United States of America | Texas | Brewster Co. 26 mi. south… | — |
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| Acacia angustissima var. chisosiana Isely | R. S. Ferris 4209 | 29 Jun 1921 | United States of America | Texas | El Paso Co. east side… | — |
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| Acacia angustissima var. hirta (Nutt.) B.L.Rob. | R. S. Ferris 3021 | 26 Jul 1921 | United States of America | Texas | Val Verde Co. fork of… | — |
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| Acacia angustissima var. hirta (Nutt.) B.L.Rob. | R. S. Ferris 3368 | 23 Aug 1921 | United States of America | Texas | Floyd Co. Staked Plains escarpment… | — |
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| Acacia angustissima var. hirta (Nutt.) B.L.Rob. | R. S. Ferris 2630 | 09 Jul 1921 - 12 Jul 1921 | United States of America | Texas | Jeff Davis Co. cliffs back… | — |
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| Acacia berlandieri Benth. | R. S. Ferris 3026 | 27 Jul 1921 | United States of America | Texas | Val Verde Co. Devil River.… | — |
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| Acacia cochliacantha Humb. & Bonpl. ex Willd. f. cochliacantha | R. S. Ferris 5646 | 23 Oct 1925 | Mexico | Nayarit | San Blas Mun. Maria Madre,… | — | ||||
| Acacia constricta Benth. | R. S. Ferris 2377 | 29 Jun 1921 | United States of America | Texas | El Paso Co. at edge… | — |
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| Acacia constricta Benth. | R. S. Ferris 2982 | 15 Jul 1921 - 18 Jul 1921 | United States of America | Texas | Brewster Co. Juniper Canon | — |
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| Acacia constricta Benth. | R. S. Ferris 2353 | 25 Jun 1921 | United States of America | New Mexico | Rio Grande Valley between Cavallo… | — |
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| Acacia farnesiana (L.) Willd. var. farnesiana | R. S. Ferris 8508 | 1 Mar 1934 | Mexico | Baja California | Ensenada Mun. Between Santo Tomás… | — | ||||
| Acacia farnesiana (L.) Willd. var. farnesiana | R. S. Ferris 3075 | 01 Aug 1921 - 05 Aug 1921 | United States of America | Texas | Hidalgo Co. 1/2 mi. north… | — |
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| Acacia ferrisae ined. | R. S. Ferris 5679 | 24 Oct 1925 | Mexico | Nayarit | San Blas Mun. Maria Madre,… | — | ||||
| Acacia macracantha Humb. & Bonpl. ex Willd. | R. S. Ferris 5320 | 2 Oct 1925 | Mexico | Nayarit | San Blas Mun. Vicinity of… | — | ||||
| Acacia rigidula Benth. | R. S. Ferris 3033 | 29 Jul 1921 | United States of America | Texas | Dimmit Co. 25 mi. from… | — |
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| Acacia rosei Standl. | R. S. Ferris 6085 | 28 Nov 1925 | Mexico | Colima | Manzanillo Mun. Vicinity of Manzanillo,… | — | ||||
| Acaciella ferrisiae Britton & Rose | R. S. Ferris 5610 | 22 Oct 1925 | Mexico | Nayarit | María Madre, Tres Marias Islands | isotype |
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| Acaciella ortegae Britton & Rose | R. S. Ferris 5251 | 22 Sep 1925 | Mexico | Sinaloa | Vicinity of Labradas | — |
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| Acalypha californica Benth. | R. S. Ferris 8565 | 05 Mar 1934 | Mexico | Baja California | 11 miles from San Augustine… | — |
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| Acalypha hederacea Torr. | R. S. Ferris 2908 | 27 Jul 1921 | United States of America | Texas | Pecos Co. Roadside between Sheffield… | — |
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| Acalypha phleoides Cav. | R. S. Ferris 2646 | 09 Jul 1921 - 12 Jul 1921 | United States of America | Texas | Jeff Davis Co. Davis Mts. | — |
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| Acalypha phleoides Cav. | R. S. Ferris 9999 | 08 Jul 1940 - 12 Jul 1940 | United States of America | Arizona | Cochise Co. Chiricahua Mountains. Dry… | — |
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| Acalypha radians Torr. | R. S. Ferris 3205 | 01 Aug 1921 - 05 Aug 1921 | United States of America | Texas | Hidalgo Co. 20 mi. north… | — |
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| Acamptopappus shockleyi A.Gray | R. S. Ferris 13428 | 27 Oct 1960 | United States of America | California | Inyo Co. W face of… | — |
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| Acamptopappus shockleyi A.Gray | R. S. Ferris 7406 | 28 Apr 1928 | United States of America | California | Inyo Co. near summit of… | — |
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| Acamptopappus sphaerocephalus S.F.Blake var. sphaerocephalus | R. S. Ferris 7238 | 23 Apr 1928 | United States of America | California | San Bernardino Co. 16 miles… | — |
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| Acanthomintha lanceolata Curran | R. S. Ferris 13086 | 19 May 1957 | United States of America | California | Stanislaus Co. Near Lookout Station,… | — |
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| Acer circinatum Pursh | R. S. Ferris 12963 | 11 Jul 1955 | United States of America | California | Shasta Co. | — |
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| Acer glabrum var. diffusum (Greene) Smiley | R. S. Ferris 9008 | 25 Jul 1934 | United States of America | California | Inyo Co. | — |
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| Acer glabrum var. diffusum (Greene) Smiley | R. S. Ferris 13416 | 26 Oct 1960 | United States of America | California | Inyo Co. Mahogany Flat &… | — |
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| Acer grandidentatum Nutt. | R. S. Ferris 9985 | 08 Jul 1940 - 12 Jul 1940 | United States of America | Arizona | Cochise Co. | — |
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| Acer grandidentatum Nutt. | R. S. Ferris 2804 | 15 Jul 1921 - 18 Jul 1921 | United States of America | Texas | Brewster Co. shaded canon near… | — |
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| Achillea millefolium L. | R. S. Ferris 586 | 14 Apr 1917 | United States of America | California | Colusa Co. In a gulch… | — |
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| Achnatherum hymenoides (Roem. & Schult.) Barkworth | R. S. Ferris 9015 | 26 Jul 1934 | United States of America | California | Inyo Co. Desert slopes, lower… | — |
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| Achnatherum nelsonii (Scribn.) Barkworth | R. S. Ferris 8860 | 21 Jul 1934 | United States of America | Nevada | Inyo, Loch Leven Fork of… | — |
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| Achnatherum nelsonii (Scribn.) Barkworth | R. S. Ferris 11791 | June 12-16, 1948 | United States of America | California | Siskiyou Co. Scott Mountain Road… | — |
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| Achyrachaena mollis Schauer | R. S. Ferris 500 | 12 Apr 1917 | United States of America | California | Colusa Co. 4 miles east… | — |
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| Acleisanthes chenopodioides (A.Gray) R.A.Levin | R. S. Ferris 2332 | 20 Jun 1921 | United States of America | New Mexico | Socorro Co. in sand near… | — |
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| Acleisanthes crassifolia A.Gray | R. S. Ferris 3214 | 01 Aug 1921 - 05 Aug 1921 | United States of America | Texas | Cameron Co. about 12 mi.… | — |
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| Aconitum columbianum Nutt. var. columbianum | R. S. Ferris 8954 | 23 Jul 1934 | United States of America | California | Inyo Co. Sierra Nevada. In… | — |
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| Adelinia grandis (Douglas ex Lehm.) J.I.Cohen | R. S. Ferris 1583 | 11 Apr 1919 - 16 Apr 1919 | United States of America | California | Tuolumne Co. Butchers gulch near… | — |
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| Adiantum jordanii C.H.Müll. | R. S. Ferris 1559 | 11 Apr 1919 - 16 Apr 1919 | United States of America | California | Tuolumne Co. Mount Hood Mine,… | — |
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| Adolphia infesta (Kunth) Meisn. | R. S. Ferris 2705 | 09 Jul 1921 - 12 Jul 1921 | United States of America | Texas | Jeff Davis Co. hillside old… | — |
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| Agalinis heterophylla (Nutt.) Small ex Britton | R. S. Ferris 3114 | 01 Aug 1921 - 05 Aug 1921 | United States of America | Texas | Cameron Co. Vicinity of Brownsville.… | — |
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| Agave deserti Engelm. | R. S. Ferris 7060 | 18 Apr 1928 | United States of America | California | San Diego Co. Near head… | — |
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| Agave lecheguilla Torr. | R. S. Ferris 2419 | 21 Jul 1921 | United States of America | Texas | El Paso Co. Scenic drive… | — |
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| Agave scabra Ortega | R. S. Ferris 3577 | 15 Jul 1921 | United States of America | Texas | Brewster Co. Chisos Mts. | — |
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| Agoseris heterophylla (Nutt.) Greene var. heterophylla | R. S. Ferris 11682 | 11 Jun 1948 | United States of America | California | Trinity Co. Summit between Mad… | — |
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| Agoseris monticola Greene | R. S. Ferris 8844 | 19 Jul 1934 | United States of America | California | Madera Co. Satcher Lake near… | — |
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| Agrostis exarata Trin. | R. S. Ferris 7790 | 26 Aug 1929 | United States of America | Oregon | Polk Co. Between Rose Lodge… | — |
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| Agrostis exarata Trin. | R. S. Ferris 8831 | 18 Jul 1934 | United States of America | California | Madera Co. Gravel bar, Middle… | — |
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| Agrostis idahoensis Nash | R. S. Ferris 8850 | 19 Jul 1934 | United States of America | California | Madera Co. Between Satcher Lake… | — |
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| Allenrolfea occidentalis (S.Watson) Kuntze | R. S. Ferris 3448 | 25 Aug 1921 | United States of America | Texas | Bailey Co. Coyote Lake | — |
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| Allenrolfea occidentalis (S.Watson) Kuntze | R. S. Ferris 13409 | 28 Oct 1959 | United States of America | California | Inyo Co. Salt Creek adjacent… | — |
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| Allenrolfea occidentalis (S.Watson) Kuntze | R. S. Ferris 13255 | 19 Mar 1958-25 Mar 1958 | United States of America | California | Riverside Co. Bottomland 8 mi.… | — |
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| Allionia incarnata L. | R. S. Ferris 2902 | 23 Jul 1921 | United States of America | Texas | Pecos Co. Pecos river bottoms… | — |
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| Allium amplectens Torr. | R. S. Ferris 11670 | 10 Jun 1948 | United States of America | California | Mendocino Co. Rocks above Eel… | — |
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| Allium amplectens Torr. | R. S. Ferris 11720 | 12 Jun 1948 - 16 Jun 1948 | United States of America | California | Siskiyou Co. Schoolhouse Hill, Plowman's… | — |
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| Allium cratericola Eastw. | R. S. Ferris 1606 | 11 Apr 1919 - 16 Apr 1919 | United States of America | California | Tuolumne Co. Red Hills above… | — |
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| Allium falcifolium Hook. & Arn. | R. S. Ferris 11840 | 12 Jun 1948 - 16 Jun 1948 | United States of America | California | Siskiyou Co. Gazelle Mountain grade,… | — |
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| Allium falcifolium Hook. & Arn. | R. S. Ferris 11716 | 12 Jun 1948 - 16 Jun 1948 | United States of America | California | Siskiyou Co. Schoolhouse Hill, Plowmen's… | — |
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| Allium hyalinum Curran | R. S. Ferris 1658 | 11 Apr 1919 - 16 Apr 1919 | United States of America | California | Tuolumne Co. By spring in… | — |
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| Allium lacunosum var. lacunosum | R. S. Ferris 13092 | 19 May 1957 | United States of America | California | Stanislaus Co. Near Lookout Station,… | — |
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| Allium parvum Kellogg | R. S. Ferris 12899 | 08 Jul 1955 | United States of America | Oregon | Harney Co. Wet meadow 500… | — |
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| Allium serra McNeal & Ownbey | R. S. Ferris 557 | 14 Apr 1917 | United States of America | California | Colusa Co. Foothills 7 mi.… | — |
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| Allium serra McNeal & Ownbey | R. S. Ferris 9407 | 15 Apr 1938 | United States of America | California | San Joaquin Co. Grassy hill… | — |
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| Alnus rhombifolia Nutt. | R. S. Ferris 1487 | 11 Apr 1919 - 16 Apr 1919 | United States of America | California | Tuolumne Co. Bear Creek at… | — |
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| Alopecurus saccatus Vasey | R. S. Ferris 549 | 12 Apr 1917 | United States of America | California | Colusa Co. 4 miles east… | — |
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