Displaying 151 - 175 out of 2574 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Penstemon deustus var. pedicellatus M.E.Jones | J. T. Howell 5555 | 14 Jul 1970 | United States of America | California | Sierra Co. Verdi Peak Road,… | — |
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| Penstemon gracilentus A.Gray | J. T. Howell 5559 | 14 Jul 1970 | United States of America | California | Sierra Co. Verdi Peak Road,… | — |
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| Arctostaphylos howellii Eastw. | J. T. Howell 5687 | 25 Oct 1930 | United States of America | California | Monterey Co. Canyon of the… | type |
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| Hesperevax sparsiflora (A.Gray) Greene var. sparsiflora | J. T. Howell 6180 | 05 Apr 1931 | United States of America | California | Solano Co. Blue Rock Springs… | — |
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| Carex integra Mack. | J. T. Howell 6384 | 24 Aug 1970 | United States of America | California | Nevada Co. Small lake on… | — |
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| Triteleia laxa Benth. | J. T. Howell 6468 | 12 May 1931 | United States of America | California | Contra Costa Co. Oakland Hills | — |
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| Triteleia laxa Benth. | J. T. Howell 6468 | 12 May 1931 | United States of America | California | Contra Costa Co. Oakland Hills | — |
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| Cirsium cymosum (Greene) J.T.Howell | J. T. Howell 6479 | 12 May 1931 | United States of America | California | Contra Costa Co. North side… | — |
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| Cirsium occidentale var. venustum (Greene) Jeps. | J. T. Howell 6697 | 15 Jun 1931 | United States of America | California | Mendocino Co. Near Talmadge, east… | — |
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| Bromus carinatus Hook. & Arn. | J. T. Howell 6849 | 01 Jul 1971 | United States of America | California | Nevada Co. Road from Columbia… | — |
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| Trisetum spicatum (L.) K.Richt. | J. T. Howell 6995 | 25 Jun 1931 | United States of America | Oregon | Klamath Co. Odell Lake. | — |
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| Phyllodoce empetriformis (Sm.) D.Don | J. T. Howell 7016 | 26 Jun 1931 | United States of America | Oregon | Deschutes Co. 3 miles n.… | — |
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| Achnatherum occidentale (Thurb. ex S.Watson) Barkworth | J. T. Howell 7116 | 01 Jul 1931 | United States of America | Oregon | Deschutes Co. 5 miles S.… | — |
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| Lemna minor L. | J. T. Howell 7124 | 12 May 1972 | United States of America | California | Nevada Co. Boca-Stampede Dam Road,… | — |
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| Cirsium scariosum Nutt. | J. T. Howell 7136 | 12 May 1972 | United States of America | California | Nevada Co. Dam road, 5.2… | — |
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| Erigeron linearis (Hook.) Piper | J. T. Howell 7186 | 03 Jul 1931 | United States of America | Oregon | Wasco Co. 10 miles south… | — |
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| Eriogonum umbellatum var. nevadense Gand. | J. T. Howell 7267 | 06 Jul 1972 | United States of America | California | Nevada Co. Andesite Ridge between… | — |
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| Penstemon procerus var. brachyanthus (Pennell) Cronquist | J. T. Howell 7275 | 09 Jul 1931 | United States of America | Oregon | Clackamas Co. Mt. Hood, south… | — |
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| Lilium columbianum Hanson | J. T. Howell 7285 | 10 Jul 1931 | United States of America | Oregon | Multnomah Co. Near Gresham | — |
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| Vaccinium parvifolium Sm. | J. T. Howell 7289 | 10 Jul 1931 | United States of America | Oregon | Clackamas Co. Salmon River Valley… | — |
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| Menziesia ferruginea var. ferruginea | J. T. Howell 7357 | 14 Jul 1931 | United States of America | California | Heather Meadows, Mt. Baker | — |
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| Penstemon newberryi var. rupicola Piper | J. T. Howell 7405 | 19 Jul 1931 | United States of America | Washington | Spokane Co. Near Reflevtion Lake,… | — |
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| Arnica latifolia Bong. | J. T. Howell 7529 | 23 Jul 1931 | United States of America | Washington | Clallam Co. Mt. Angeles | — |
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| Agoseris aurantiaca (Hook.) Greene var. aurantiaca | J. T. Howell 7536 | 23 Jul 1931 | United States of America | Washington | Clallam Co. Mt. Angeles | — |
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| Solidago simplex subsp. simplex var. simplex | J. T. Howell 7582 | 29 Jul 1931 | Canada | British Columbia | Campbell River, Vancouver Island. | — |
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