Displaying 1 - 50 out of 249 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Acer macrophyllum Pursh | T. S. Ross 3378 | 11 Jun 1990 | United States of America | California | Los Angeles Co. Big Rock… | — |
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| Acer macrophyllum Pursh | T. S. Ross 7866 | 24 May 1994 | United States of America | California | Los Angeles Co. Lower NE… | — |
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| Acer macrophyllum Pursh | T. S. Ross 3186 | 17 Aug 1990 | United States of America | California | Los Angeles Co. San Gabriel… | — |
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| Acer macrophyllum Pursh | T. S. Ross 7364 | 01 Jun 1993 | United States of America | California | Los Angeles Co. W margin… | — |
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| Achnatherum coronatum (Thurb.) Barkworth | T. S. Ross 7929 | 25 May 1994 | United States of America | California | Los Angeles Co. Necktie Basin:… | — |
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| Achnatherum coronatum (Thurb.) Barkworth | T. S. Ross 7300 | 26 May 1993 | United States of America | California | Los Angeles Co. W end… | — |
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| Achnatherum coronatum (Thurb.) Barkworth | T. S. Ross 8421 | 04 May 1995 | United States of America | California | Los Angeles Co. Texas Canyon:… | — |
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| Achnatherum hymenoides (Roem. & Schult.) Barkworth | T. S. Ross 4678 | 27 Apr 1991 | United States of America | California | Los Angeles Co. Black Butte… | — |
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| Adenostoma fasciculatum Hook. & Arn. | T. S. Ross 2662 | 27 May 1990 | United States of America | California | San Bernardino Co. San Gabriel… | — |
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| Agoseris retrorsa (Benth.) Greene | T. S. Ross 2559 | 17 May 1990 | United States of America | California | Los Angeles Co. Little Gleason… | — |
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| Agoseris retrorsa (Benth.) Greene | T. S. Ross 6298 | 08 May 1992 | United States of America | California | Los Angeles Co. San Gabriel… | — |
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| Agoseris retrorsa (Benth.) Greene | T. S. Ross 2654 | 27 May 1990 | United States of America | California | San Bernardino Co. Ridgetop at… | — |
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| Agropyron cristatum (L.) Gaertn. | T. S. Ross 3764 | 22 Jun 1990 | United States of America | California | Los Angeles Co. Pinyon Ridge:… | — |
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| Ailanthus altissima (Mill.) Swingle | T. S. Ross s.n. | 15 Nov 1991 | United States of America | California | Los Angeles Co. Rancho Santa… | — |
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| Allium burlewii Davidson | T. S. Ross 3419 | 15 Jun 1990 | United States of America | California | San Bernardino Co. San Gabriel… | — |
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| Allium lacunosum var. lacunosum | T. S. Ross 7922 | 25 May 1994 | United States of America | California | Los Angeles Co. Liebre Mountains;… | — |
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| Allium monticola Davidson | T. S. Ross 3416 | 15 Jun 1990 | United States of America | California | San Bernardino Co. San Gabriel… | — |
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| Amauria rotundifolia Benth. | T. S. Ross 7053 | 3 May 1993 | Mexico | Baja California | Sierra La Asamblea, SW foot… | — |
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| Ambrosia ambrosioides (Cav.) Payne | T. S. Ross 7037 | 3 May 1993 | Mexico | Baja California | Sierra La Asamblea, SW foot… | — |
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| Ambrosia chenopodiifolia (Benth.) W.W.Payne | T. S. Ross 7034 | 3 May 1993 | Mexico | Baja California | Sierra La Asamblea, SW foot… | — |
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| Ambrosia magdalenae (Brandegee) W.W.Payne | T. S. Ross 7033a | 3 May 1993 | Mexico | Baja California | Sierra La Asamblea, SW foot… | — |
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| Amorpha californica var. californica | T. S. Ross 7363 | 01 Jun 1993 | United States of America | California | Los Angeles Co. San Gabriel… | — |
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| Amorpha californica var. californica | T. S. Ross 8644 | 28 Jun 1995 | United States of America | California | Los Angeles Co. Liebre Mountains,… | — |
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| Amorpha californica var. californica | T. S. Ross 6561 | 15 Jun 1992 | United States of America | California | Los Angeles Co. Whittier Hills… | — |
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| Amorpha californica var. californica | T. S. Ross 7367 | 07 Jun 1993 | United States of America | California | Los Angeles Co. W end… | — |
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| Amorpha californica var. californica | T. S. Ross 8014 | 22 Jun 1994 | United States of America | California | Los Angeles Co. Liebre Mountains,… | — |
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| Apocynum cannabinum L. | T. S. Ross 2912 | 8 Jun 1990 | United States of America | California | Los Angeles Co. Upper Big… | — |
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| Arbutus menziesii Pursh | T. S. Ross 6483 | 21 May 1992 | United States of America | California | Monterey Co. The Santa Lucia… | — |
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| Arctostaphylos glandulosa Eastw. | T. S. Ross 3829 | 25 Jun 1990 | United States of America | California | Los Angeles Co. The San… | — |
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| Arctostaphylos glandulosa Eastw. | T. S. Ross 2567 | 17 May 1990 | United States of America | California | Los Angeles Co. The San… | — |
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| Arctostaphylos glandulosa Eastw. | T. S. Ross 2905 | 08 Jun 1990 | United States of America | California | Los Angeles Co. The San… | — |
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| Arctostaphylos glandulosa Eastw. | T. S. Ross 6228 | 21 Apr 1992 | United States of America | California | Los Angeles Co. The San… | — |
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| Arctostaphylos hooveri P.V.Wells | T. S. Ross 6484 | 31 May 1992 | United States of America | California | Monterey Co. The Santa Lucia… | — |
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| Arctostaphylos patula Greene | T. S. Ross 3429 | 15 Jun 1990 | United States of America | California | San Bernardino Co. The San… | — |
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| Asclepias californica Greene | T. S. Ross 2929 | 8 Jun 1990 | United States of America | California | Los Angeles Co. Upper Big… | — |
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| Asphodelus fistulosus L. | T. S. Ross 6137 | 13 Apr 1992 | United States of America | California | Los Angeles Co. San Clemente… | — |
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| Aspidotis californica (Hook. ex) Nutt. ex Copel. | T. S. Ross 6409 | 24 May 1992 | United States of America | California | Los Angeles Co. Lower Brown's… | — |
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| Astragalus douglasii (Torr. & A.Gray) A.Gray var. douglasii | T. S. Ross 2762 | 01 Jun 1990 | United States of America | California | Los Angeles Co. Moody Canyon… | — |
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| Astragalus douglasii var. parishii (A.Gray) M.E.Jones | T. S. Ross 2655 | 27 May 1990 | United States of America | California | San Bernardino Co. Upper Lytle… | — |
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| Astragalus gambelianus E.Sheld. | T. S. Ross 4556 | 21 Apr 1991 | United States of America | California | Los Angeles Co. Whittier Hills… | — |
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| Astragalus gambelianus E.Sheld. | T. S. Ross 3861 | 29 Mar 1990 | United States of America | California | Riverside Co. Vail Lake area,… | — |
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| Astragalus lentiginosus var. variabilis Barneby | T. S. Ross 6097 | 04 Apr 1992 | United States of America | California | Los Angeles Co. Mojave Desert:… | — |
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| Astragalus lentiginosus var. variabilis Barneby | T. S. Ross 4736 | 28 Apr 1991 | United States of America | California | Los Angeles Co. Mojave Desert:… | — |
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| Astragalus lentiginosus var. variabilis Barneby | T. S. Ross 4287 | 23 Mar 1991 | United States of America | California | San Bernardino Co. Mojave Desert:… | — |
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| Astragalus preussii A.Gray var. preussii | T. S. Ross 7559 | 20 Apr 1994 | United States of America | Nevada | Clark Co. Las Vegas northwest… | — |
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| Astragalus trichopodus var. lonchus (M.E.Jones) Barneby | T. S. Ross 6890 | 22 Apr 1993 | United States of America | California | Los Angeles Co. Santa Catalina… | — |
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| Astragalus trichopodus var. lonchus (M.E.Jones) Barneby | T. S. Ross 7400A | 28 Mar 1994 | United States of America | California | Los Angeles Co. Palos Verdes… | — |
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| Astragalus trichopodus var. phoxus (M.E.Jones) Barneby | T. S. Ross 8348 | 31 Mar 1997 | United States of America | California | Los Angeles Co. "Old Ridge… | — |
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| Astragalus trichopodus var. phoxus (M.E.Jones) Barneby | T. S. Ross 2861 | 06 Jun 1990 | United States of America | California | Riverside Co. .3 mile ESE… | — |
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| Astragalus trichopodus var. phoxus (M.E.Jones) Barneby | T. S. Ross 4943 | 30 Apr 1991 | United States of America | California | Los Angeles Co. Castaic Creek:… | — |
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