Draba oligosperma Hooker (Q3524)
Draba oligosperma is a taxon with the rank species within the genus Draba
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Draba oligosperma Hooker
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Draba oligosperma is a taxon with the rank species within the genus Draba
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Statements
taxon/id/Draba oligosperma Hooker
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Draba oligosperma Hooker
Draba oligosperma
Hooker
FNA Editorial Committee. 2010. Flora of North America north of Mexico. Volume 7: Magnoliophyta: Salicaceae to Brassicaceae. Oxford University Press, New York.
accepted
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CA-AB
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Moss, E.H. 1983. Flora of Alberta. 2nd edition, revised by J.G. Packer. University of Toronto Press, Toronto. 687 pp.
CA-BC
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Douglas, G.W., G.B. Straley, D.V. Meidinger & J. Pojar. 1998. Illustrated Flora of British Columbia. B.C. Ministry of Environment, Lands & Parks and B.C. Ministry of Forests. Victoria. Crown Publications. 8 vols.
CA-NT
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Porsild, A.E. & W.J. Cody. 1980. Vascular Plants of the Continental Northwest Territories, Canada. National Museum of Natural Sciences, Ottawa, Ont. 667 pp.
CA-NU
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Aiken, S.G., M.J. Dallwitz, L.L. Consaul, C.L., McJannet, R.L., Boles, G.W. Argus, J.M. Gillett, P.J. Scott, R. Elven, M.C. LeBlanc, L.J. Gillespie, A.K. Brysting, H. Solstad & J.G. Harris. 2007. Flora of the Canadian Arctic Archipelago: Descriptions, Illustrations, Identification, and Information Retrieval. [CD-ROM] NRC Research Press, National Research Council of Canada, Ottawa.
CA-YT
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Cody, W.J. 2000. Flora of the Yukon Territory. 2nd ed. National Research Press, Ottawa. 669 pp.
CA-AB
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CA-BC
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CA-NT
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CA-NU
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CA-YT
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US-AK
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US-CA
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US-CO
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US-ID
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US-MT
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US-NV
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US-OR
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US-WY
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200-3900 m
200 meter
3,900 meter
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Stems unbranched, (0.1–) 0.2–0.6 (–1) dm, glabrous throughout or pubescent, trichomes sessile, pectinate, 0.1–0.3 mm, (their length parallel to long axis of stem).
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blade linear to linear-oblanceolate, (0.2–) 0.4–1.1 (–1.5) cm × 0.4–1.5 (–1.8) mm, margins entire, (not or, rarely, ciliate, trichomes simple, 0.2–0.4 mm), surfaces pubescent with sessile, pectinate trichomes, 0.1–0.4 mm, (their long axis parallel to prominent abaxial midvein), sometimes glabrous adaxially.
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Racemes 4–12 (–17) -flowered, ebracteate, elongated in fruit;
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Fruiting pedicels divaricate-ascending, straight, (2–) 3–10 (–13) mm, glabrous or sparsely pubescent, trichomes pectinate.
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Flowers: sepals ovate, 1.5–3 mm, glabrous or sparsely pubescent, (trichomes pectinate, 2-rayed, or simple);
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petals usually yellow, rarely creamy white, obovate, 2.5–4 × 1.5–3 mm;
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anthers ovate, 0.4–0.5 mm, (not producing pollen).
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Fruits ovoid to lanceolate, plane, inflated at least basally, sometimes slightly flattened distally, 3–6 (–7) × 2–3.5 (–4) mm;
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valves usually puberulent, rarely glabrous, trichomes simple and sessile, often unequally 2-rayed, 0.07–0.35 mm;
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ovules 6–12 per ovary;
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style 0.1–0.8 (–1.1) mm.
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Seeds ovoid, 1.1–1.5 × 0.7–1 mm. 2n = 32, 64.
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inflated
at-least basally; basally
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flattened
sometimes slightly; distally
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