Displaying 1 - 75 out of 158 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Achillea millefolium L. | K. L. Chambers 2411 | 25 Jul 1965 | United States of America | Oregon | Harney Co. Steens Mountain. Ridge… | — |
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| Achnatherum lemmonii (Vasey) Barkworth | K. L. Chambers 1717 | 10 Jun 1961 | United States of America | Oregon | Jackson Co. North of Lower… | — |
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| Achnatherum lemmonii (Vasey) Barkworth | K. L. Chambers 5801 | 16 Jun 1994 | United States of America | Oregon | Jackson Co. Road 20 (Siskiyou… | — |
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| Achnatherum thurberianum (Piper) Barkworth | K. L. Chambers 1673 | 30 May 1961 | United States of America | Oregon | Jefferson Co. Hwy. 97 between… | — |
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| Agastache urticifolia (Benth.) Kuntze var. urticifolia | K. L. Chambers 2373 | 25 Jul 1965 | United States of America | Oregon | Harney Co. Steens Mountain. Fish… | — |
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| Agoseris aurantiaca (Hook.) Greene var. aurantiaca | K. L. Chambers s.n. | 24 Jun 1962 | United States of America | Oregon | Wasco Co. Warm Springs Indian… | — |
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| Agoseris aurantiaca (Hook.) Greene var. aurantiaca | K. L. Chambers 5765 | 24 Jul 1993 | United States of America | Oregon | Linn Co. Willamette National Forest,… | — |
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| Agoseris elata (Nutt.) Greene | K. L. Chambers 5772 | 23 Aug 1993 | United States of America | Oregon | Jefferson Co. Green Ridge, E… | — |
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| Agoseris monticola Greene | K. L. Chambers 2405 | 25 Jul 1965 | United States of America | Oregon | Harney Co. Steens Mountain; above… | — |
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| Agoseris parviflora (Nutt.) D.Dietr. | K. L. Chambers 1657 | 30 May 1961 | United States of America | Oregon | Deschutes Co. Hwy. 126, ca.… | — |
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| Agrostis hallii Vasey | K. L. Chambers 2463 | 16 Jul 1966 | United States of America | California | Del Norte Co. Hwy 101,… | — |
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| Agrostis hyemalis (Walter) Britton, Sterns & Poggenb. | K. L. Chambers 2903 | 24 Sep 1968 | United States of America | Oregon | Clackamas Co. Flood plain of… | — |
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| Aira caryophyllea L. | K. L. Chambers 3805 | 15 Jul 1973 | United States of America | Oregon | Clatsop Co. Saddle Mountain State… | — |
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| Aira praecox L. | K. L. Chambers 1914 | 28 Jun 1962 | United States of America | Oregon | Lincoln Co. On W side… | — |
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| Allium crenulatum Wiegand | K. L. Chambers 3153 | 29 Jun 1971 | United States of America | Oregon | Clatsop Co. Onion Peak. | — |
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| Allium diabolense (Ownbey ex Traub) McNeal | K. L. Chambers 1035 | 29 Apr 1956 | United States of America | California | San Luis Obispo Co. San… | — |
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| Allium falcifolium Hook. & Arn. | K. L. Chambers 3190 | 07 Jul 1971 | United States of America | Oregon | Josephine Co. Sanger Peak road,… | — |
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| Allium tolmiei var. tolmiei | K. L. Chambers 1660 | 30 May 1961 | United States of America | Oregon | Jefferson Co. Hwy. 97 between… | — |
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| Alopecurus saccatus Vasey | K. L. Chambers 3982 | 12 May 1974 | United States of America | Oregon | Jackson Co. Hwy. 234 east… | — |
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| Alopecurus saccatus Vasey | K. L. Chambers 3096 | 16 May 1971 | United States of America | — | Jackson, Agate Desert north of… | — |
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| Anisocoma acaulis Torr. & A.Gray | K. L. Chambers 3605 | March 18, 1973 | United States of America | California | Kern Co. 5.7 miles n.… | — |
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| Antennaria media Greene | K. L. Chambers 3362 | 19 Aug 1971 | United States of America | Oregon | Harney Co. Steens Mountain. Head… | — |
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| Anthoxanthum aristatum Boiss. | K. L. Chambers 5150 | 16 Jun 1984 | United States of America | California | Humboldt Co. Bald Hills Road,… | — |
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| Arnica cordifolia Hook. | K. L. Chambers 2916 | 11 May 1969 | United States of America | Oregon | Josephine Co. 4.6 miles S… | — |
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| Arnica discoidea Benth. | K. L. Chambers 5603 | 04 Jun 1991 | United States of America | Oregon | Josephine Co. Illinois Valley, on… | — |
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| Arnica latifolia Bong. | K. L. Chambers 3149 | 29 Jun 1971 | United States of America | Oregon | Clatsop Co. Onion Peak. | — |
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| Arnica spathulata Greene | K. L. Chambers 2912 | 10 May 1969 | United States of America | Oregon | Josephine Co. Hwy. 199, about… | — |
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| Artemisia estesii K.L.Chambers | K. L. Chambers 4408 | 07 Aug 1977 | United States of America | Oregon | Deschutes Co. Cline Falls, where… | isotype |
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| Artemisia estesii K.L.Chambers | K. L. Chambers 4408 | 07 Aug 1977 | United States of America | Oregon | Deschutes Co. Cline Falls, where… | isotype |
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| Artemisia ludoviciana subsp. incompta (Nutt.) D.D.Keck | K. L. Chambers 2432 | 22 Sep 1965 | United States of America | California | Modoc Co. Cedar Pass, Warner… | — |
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| Artemisia tridentata subsp. vaseyana (Rydb.) Beetle | K. L. Chambers 2427 | 21 Sep 1965 | United States of America | Oregon | Lake Co. Hwy. 31, between… | — |
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| Asplenium trichomanes L. | K. L. Chambers 3850 | 28 Apr 1974 | United States of America | Oregon | Linn Co. Hwy. 20, Cascade… | — |
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| Astragalus curvicarpus var. subglaber (Rydb.) Barneby | K. L. Chambers 1681 | 31 May 1961 | United States of America | Oregon | Jefferson Co. Hwy 26 between… | — |
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| Astragalus filipes Torr. ex A.Gray | K. L. Chambers 1668 | 30 May 1961 | United States of America | Oregon | Jefferson Co. Hwy. 97 between… | — |
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| Astragalus inflexus Douglas ex Hook. | K. L. Chambers 5904 | 29 May 1995 | United States of America | Oregon | Wallowa Co. Lower Imnaha River… | — |
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| Astragalus lentiginosus var. borreganus M.E.Jones | K. L. Chambers 3651 | 20 Mar 1973 | United States of America | California | San Diego Co. Borrego Valley,… | — |
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| Astragalus obscurus S.Watson | K. L. Chambers 6085 | 05 Jun 1998 | United States of America | Oregon | Malheur Co. Leslie Gulch Road,… | — |
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| Calliandra tergemina (L.) Benth. | K. L. Chambers 2779 | 25 Feb 1966 | Dominica | — | 1/4 mile south of Mero. | — |
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| Calyptranthes fasciculata O.Berg | K. L. Chambers 2575 | 13 Jan 1966 | Dominica | — | Near Fresh Water Lake, southeast… | — |
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| Camissonia cheiranthifolia (Hornem. ex Spreng.) Raim. | K. L. Chambers 2471 | 30 Aug 1966 | United States of America | California | San Luis Obispo Co. Near… | — |
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| Carex haydeniana Olney | K. L. Chambers 3354 | 19 Aug 1971 | United States of America | Oregon | Harney Co. Steens Mountain. Head… | — |
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| Carex macrochaeta C.A.Mey. | K. L. Chambers 3741 | 03 Jun 1973 | United States of America | Oregon | Clatsop Co. Saddle Mountain State… | — |
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| Carex mertensii J.D.Prescott ex Bong. | K. L. Chambers 3285 | 21 Jul 1971 | United States of America | Oregon | Clatsop Co. Onion Peak; n.… | — |
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| Carex serratodens W.Boott | K. L. Chambers 3884 | 09 May 1974 | United States of America | Oregon | Josephine Co. Sexton Mtn., north… | — |
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| Castilleja chromosa A.Nelson | K. L. Chambers 6056 | 03 Jun 1998 | United States of America | Oregon | Lake Co. Highway 140, west… | — |
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| Castilleja pilosa var. steenensis (Pennell) N.H.Holmgren | K. L. Chambers 3345 | 19 Aug 1971 | United States of America | Oregon | Harney Co. Steens Mountain. Head… | — |
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| Chamaecrista glandulosa var. swartzii (Wikström) H.S.Irwin & Barneby | K. L. Chambers 2786 | 27 Feb 1966 | Dominica | — | Just south of the mouth… | — |
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| Chromolaena trigonocarpa (Griseb.) R.M.King & H.Rob. | K. L. Chambers 2653 | 27 Jan 1966 | Dominica | — | Syndicate Estate, lower slopes of… | — |
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| Chrysothamnus viscidiflorus (Hook.) Nutt. subsp. viscidiflorus | K. L. Chambers 2428 | 21 Sep 1965 | United States of America | Oregon | Lake Co. Hwy. 31, between… | — |
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| Claytonia gypsophiloides Fisch. & C.A.Mey. | K. L. Chambers 5722 | 06 May 1993 | United States of America | California | Lake Co. Bottle Rock Rd.,… | — |
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| Claytonia parviflora Douglas in Hook. subsp. parviflora | K. L. Chambers 5721 | 06 May 1993 | United States of America | California | Lake Co. Bottle Rock Road,… | — |
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| Claytonia rubra (Howell) Tidestr. | K. L. Chambers 3417 | 20 May 1972 | United States of America | Oregon | Harney Co. 9 miles east… | — |
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| Conostegia montana (Sw.) D.Don ex DC. | K. L. Chambers 2563 | 13 Jan 1966 | Dominica | — | Near the Freah Water Lake,… | — |
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| Coptis laciniata A.Gray | K. L. Chambers 3124 | 29 Jun 1971 | United States of America | Oregon | Clatsop Co. Onion Peak | — |
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| Crepis intermedia A.Gray | K. L. Chambers 4510 | 08 Jul 1978 | United States of America | Oregon | Crook Co. Ochoco Mountains, Little… | — |
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| Cryptantha micrantha (Torr.) I.M.Johnst. | K. L. Chambers 3603 | 18 Mar 1973 | United States of America | California | Kern Co. Hwy. 395, 5.7… | — |
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| Cryptantha nevadensis A.Nelson & P.B.Kenn. | K. L. Chambers 3595 | 18 Mar 1973 | United States of America | California | Inyo Co. Highway 395, 4.0… | — |
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| Cryptantha torreyana (A.Gray) Greene | K. L. Chambers 2373A | 25 Jul 1965 | United States of America | Oregon | Harney Co. Steens Mountains. Fish… | — |
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| Cyathea arborea (L.) Sm. | K. L. Chambers 2664 | 01 Feb 1966 | Dominica | — | Roadsides at margin of partially… | — |
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| Delphinium nuttallianum Pritz. | K. L. Chambers 3108 | 14 Jun 1971 | United States of America | Oregon | Deschutes Co. About 3 miles… | — |
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| Dichelostemma capitatum (Benth.) Alph.Wood subsp. capitatum | K. L. Chambers 1630 | 06 May 1961 | United States of America | Oregon | Jackson Co. North of Lower… | — |
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| Dodecatheon austrofrigidum K.L.Chambers | K. L. Chambers 5436 | 13 May 1989 | United States of America | Oregon | Tillamook Co. Trask River at… | isotype |
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| Dodecatheon austrofrigidum K.L.Chambers | K. L. Chambers 4694 | 29 Jun 1980 | United States of America | Oregon | Tillamook Co. Trask River Road,… | paratype |
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| Dodecatheon conjugens Greene var. conjugens | K. L. Chambers 2020 | 04 May 1963 | United States of America | California | Modoc Co. Hwy. 139, ca.… | — |
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| Draba paysonii var. treleasii (O.E.Schulz) C.L.Hitchc. | K. L. Chambers 2400 | 25 Jul 1965 | United States of America | Oregon | Harney Co. Steens Mountain. Wind-swept… | — |
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| Drypetes lateriflora (Sw.) Krug & Urb. | K. L. Chambers 266 | — | United States of America | Florida | Florida Keys. Windley's Key, hammock… | — |
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| Elymus multisetus (J.G.Sm.) Burtt Davy | K. L. Chambers 1680 | 31 May 1961 | United States of America | Oregon | Jefferson Co. Hwy. 26 between… | — |
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| Epilobium halleanum Hausskn. | K. L. Chambers 3360 | 19 Aug 1971 | United States of America | Oregon | Harney Co. Steens Mountain. In… | — |
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| Erigeron aliceae Howell | K. L. Chambers 3292 | 25 Jul 1971 | United States of America | Oregon | Clatsop Co. Saddle Mountain State… | — |
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| Erigeron bloomeri var. nudatus (A.Gray) Cronquist | K. L. Chambers 3195 | 07 Jul 1971 | United States of America | California | Del Norte Co. Sanger Peak… | — |
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| Erigeron compositus var. glabratus Macoun | K. L. Chambers 2386 | 25 Jul 1965 | United States of America | Oregon | Harney Co. Steens Mountain, windswept… | — |
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| Erigeron howellii (A.Gray) A.Gray | K. L. Chambers 3401 | 01 May 1972 | United States of America | Oregon | Multnomah Co. Yeon State Park,… | — |
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| Erigeron myrionactis Small | K. L. Chambers 1789 | 20 Dec 1961 | United States of America | Texas | Nueces Co. Flour Bluff Road,… | — |
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| Erigeron peregrinus (Pursh) Greene subsp. peregrinus var. peregrinus | K. L. Chambers 3150 | 29 Jun 1971 | United States of America | Oregon | Clatsop Co. Onion Peak; rocky… | — |
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| Erigeron peregrinus subsp. callianthemus (Greene) Cronquist | K. L. Chambers 3353 | 19 Aug 1971 | United States of America | Oregon | Harney Co. Steens Mountain; in… | — |
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