Draba macounii O. E. Schulz in H. G. A. Engler (Q3517)

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Draba macounii is a taxon with the rank species within the genus Draba
Language Label Description Also known as
English
Draba macounii O. E. Schulz in H. G. A. Engler
Draba macounii is a taxon with the rank species within the genus Draba

    Statements

    taxon/id/Draba macounii O.E. Schulz
    0 references
    Draba macounii O.E. Schulz
    Draba macounii
    O.E. Schulz
    FNA Editorial Committee. 2010. Flora of North America north of Mexico. Volume 7: Magnoliophyta: Salicaceae to Brassicaceae. Oxford University Press, New York.
    accepted
    drave de Macoun (French)
    Macoun's draba (English)
    Macoun's whitlowgrass (English)
    1 reference
    Moss, E.H. 1983. Flora of Alberta. 2nd edition, revised by J.G. Packer. University of Toronto Press, Toronto. 687 pp.
    1 reference
    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.
    1 reference
    Porsild, A.E. & W.J. Cody. 1980. Vascular Plants of the Continental Northwest Territories, Canada. National Museum of Natural Sciences, Ottawa, Ont. 667 pp.
    1 reference
    Cody, W.J. 2000. Flora of the Yukon Territory. 2nd ed. National Research Press, Ottawa. 669 pp.
    Flowering Jun–Aug.
    Stems unbranched, (0.06–) 0.1–0.4 (–0.6) dm, usually pubescent, rarely glabrous, trichomes simple and stalked, 2–4-rayed, 0.15–0.9 mm.
    Basal leaves rosulate;
    petiole (obscure), margin ciliate, (trichomes simple, 0.3–1 mm);
    blade oblanceolate to obovate, (0.4–) 0.6–1 (–1.5) cm × (1–) 2–4 mm, margins entire, surfaces usually pubescent abaxially, rarely glabrous, with short-stalked, 2–5-rayed trichomes, 0.1–0.5 mm, adaxially glabrous or pubescent with simple and short-stalked, 2-rayed trichomes.
    Racemes 3–10 (–13) -flowered, ebracteate, (subumbellate), slightly elongated in fruit;
    Fruiting pedicels horizontal to divaricate (not expanded basally), curved upward, 1.5–4.5 (–6) mm, abaxially pubescent as stem, adaxially usually glabrous, rarely throughout.
    Flowers: sepals ovate, 1.5–2.5 mm, glabrous or pubescent, (trichomes simple and short-stalked, 2-rayed or 3-rayed);
    petals pale-yellow, spatulate, 2.7–4 × 1–2 mm;
    anthers ovate, 0.2–0.3 mm.
    Fruits subglobose to ovoid or ellipsoid, plane, inflated at least basally, 4–8 × 2–4.5 mm;
    ovules 10–14 (–16) per ovary;
    style 0.1–0.5 mm.
    Seeds ovoid, 1–1.2 × 0.6–0.8 mm. 2n = 64.