Draba yukonensis A. E. Porsild (Q3538)
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Draba yukonensis is a taxon with the rank species within the genus Draba
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Draba yukonensis A. E. Porsild
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Draba yukonensis is a taxon with the rank species within the genus Draba
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Statements
taxon/id/Draba yukonensis A.E. Porsild
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Draba yukonensis A.E. Porsild
Draba yukonensis
A.E. Porsild
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-YT
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Cody, W.J. 2000. Flora of the Yukon Territory. 2nd ed. National Research Press, Ottawa. 669 pp.
CA-YT
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Stems branched, 0.4–2 dm, pubescent throughout, trichomes simple, 0.3–1.2 mm, and 2–6-rayed, 0.05–0.6 mm.
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blade oblanceolate to narrowly so, 0.3–1 cm × 0.5–2 mm, margins entire, (ciliate, trichomes simple, to 1.3 mm), surfaces pubescent, abaxially with (rigid), simple and 2-rayed trichomes, 0.4–1.2 mm, sometimes with short-stalked, 3–6-rayed ones, 0.1–0.3 mm, adaxially with simple trichomes.
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blade ovate to oblong, margins entire, surfaces pubescent as basal.
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Racemes 5–20-flowered, ebracteate, considerably elongated in fruit;
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Fruiting pedicels erect to ascending, straight, 0.5–3 mm, pubescent as stem.
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Flowers: sepals ovate, 1.2–1.6 mm, pubescent, (trichomes simple and 2–4-rayed);
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petals white, spatulate, 1.5–2 × 0.7–0.8 mm;
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anthers ovate, ca. 0.2 mm.
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Fruits ovoid to oblong, plane, not flattened, 2–5 × 1.5–2 mm;
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valves pubescent, trichomes short-stalked, 4-rayed or 5-rayed, 0.05–0.3 mm;
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ovules 36–52 per ovary;
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style 0.1–0.3 mm.
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Seeds oblong, 0.6–0.8 × 0.3–0.4 mm.
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