Draba ruaxes Payson & H. St. John (Q3530)
Draba ruaxes is a taxon with the rank species within the genus Draba
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Draba ruaxes Payson & H. St. John
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Draba ruaxes is a taxon with the rank species within the genus Draba
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Statements
taxon/id/Draba ruaxes Payson & H. St.John
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Draba ruaxes Payson & H. St.John
Draba ruaxes
Payson & H. St.John
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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FNA Editorial Committee. 2010. Flora of North America north of Mexico. Volume 7: Magnoliophyta: Salicaceae to Brassicaceae. Oxford University Press, New York. http://www.efloras.org/volume_page.aspx?volume_id=1007&flora_id=1
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-YT
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US-AK
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US-WA
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500-2400 m
500 meter
2,400 meter
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Stems unbranched, 0.2–0.6 (–0.8) dm, often pubescent throughout, sometimes glabrate distally, trichomes simple, 0.4–1 mm, and 2–4-rayed, 0.1–0.4 mm.
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petiole base and margin ciliate, (trichomes simple, 0.4–1.4 mm);
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blade oblanceolate to obovate or suborbicular, 0.3–1 cm × 2–4.5 mm, margins entire, surfaces pubescent, abaxially with stalked, 2–10-rayed, stellate trichomes, 0.2–0.8 mm, adaxially with simple trichomes, 0.4–1 mm, sometimes with smaller, 2–4-rayed ones, (midvein obscure).
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Racemes (2–) 4–10 (–14) -flowered, ebracteate, elongated in fruit;
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Fruiting pedicels ascending to divaricate-ascending, straight or slightly curved upward, 3–7 (–9) mm, pubescent or glabrous, trichomes simple and 2–4-rayed.
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Flowers: sepals ovate, 2–3 mm, pubescent, (trichomes simple with fewer, 2-rayed ones);
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petals bright-yellow, obovate, 4–6 × 2–3.5 mm;
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anthers oblong, 0.4–0.5 mm.
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Fruits elliptic to lanceolate or ovate to suborbicular, plane, flattened, 4–8 (–10) × 3–4.5 mm;
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valves puberulent, trichomes simple with fewer 2-rayed ones, 0.1–0.35 mm;
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ovules 12–16 per ovary;
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style 0.5–0.9 (–1.1) mm.
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Seeds oblong, 1.5–2 × 1–1.3 mm. 2n = 72.
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glabrate
sometimes; distally
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oblanceolate
obovate or suborbicular
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elliptic
lanceolate or ovate
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