Draba borealis de Candolle (Q3503)
Draba borealis is a taxon with the rank species within the genus Draba
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Draba borealis de Candolle
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Draba borealis is a taxon with the rank species within the genus Draba
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Statements
taxon/id/Draba borealis de Candolle
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Draba borealis de Candolle
Draba borealis
de Candolle
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-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-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-YT
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Cody, W.J. 2000. Flora of the Yukon Territory. 2nd ed. National Research Press, Ottawa. 669 pp.
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.
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Stems usually unbranched, rarely branched, (0.4–) 1–3.6 (–5.5) dm, often hirsute proximally, trichomes usually simple and 2-rayed, 0.5–1.1 mm, with short-stalked, 3–8-rayed ones, 0.1–0.4 mm (rarely simple trichomes absent distally).
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Basal leaves rosulate;
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blade ovate or obovate to oblanceolate, (0.5–) 1–4.2 (–6) cm × 3–10 (–25) mm, margins dentate or denticulate, surfaces pubescent, trichomes short-stalked, cruciform, or (2–) 4–6-rayed, 0.2–0.6 mm (principal rays usually simple, rarely 1 or 2 with a lateral branch, sometimes appearing to 10-rayed).
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blade ovate, margins entire or dentate, surfaces pubescent as basal or adaxially with some simple trichomes.
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Racemes (6–) 8–20 (–35) -flowered, ebracteate, elongated in fruit;
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Fruiting pedicels divaricate or ascending, straight, (2–) 4–8 (–13) mm, pubescent as stem.
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Flowers: sepals ovate, 2–3 mm, pubescent, (trichomes simple);
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petals white, obovate, 4–6 × 2–3 mm;
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anthers ovate, 0.3–0.5 mm.
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Fruits ovate to broadly oblong or lanceolate, slightly twisted or plane, flattened, (5–) 7–12 × 2.5–4.5 mm;
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valves pubescent, trichomes simple and short-stalked, 2–4-rayed, 0.1–0.4 mm;
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ovules 16–28 (–30) per ovary;
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style 0.2–0.6 (–0.8) mm, glabrous.
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Seeds oblong, 1–1.5 × 0.7–1 mm. 2n = 64, 80.
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broadly oblong or lanceolate
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