Draba chamissonis G. Don (Q3544)

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Draba chamissonis is a taxon with the rank species within the genus Draba
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Draba chamissonis G. Don
Draba chamissonis is a taxon with the rank species within the genus Draba

    Statements

    taxon/id/Draba chamissonis G. Don
    0 references
    Draba chamissonis G. Don
    Draba chamissonis
    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 Chamisso (French)
    1 reference
    University of British Columbia Herbarium (UBC), Vancouver, BC. Specimen. http://www.beatymuseum.ubc.ca/herbarium/index.html
    e Asia (Russian Far East)
    e Asia (n Siberia)
    Flowering Jun–Jul.
    rock cliffs
    bluffs
    wind-swept tundra
    Stems unbranched, 0.4–1.2 dm, pubescent throughout, trichomes minutely stalked, stellate, 8–12-rayed, (non-crisped), 0.03–0.3 mm, sometimes with simple and 2-rayed ones, to 0.3 mm.
    Basal leaves rosulate;
    petiole (obsolete), margin usually not ciliate, (trichomes, when present, simple and 2-rayed, 0.2–0.35 mm);
    blade oblanceolate to obovate, 0.4–1 cm × 1–3 mm, margins denticulate or entire, surfaces pubescent with short-stalked, stellate, (non-crisped), 8–12-rayed trichomes, 0.05–0.2 mm, (midvein obscure abaxially).
    blade broadly ovate, margins usually denticulate, rarely entire.
    Racemes 4–10-flowered, proximalmost 1–5 flowers bracteate, elongated;
    Fruiting pedicels ascending, straight, (4–) 6–13 (–20) mm, pubescent as stem.
    Flowers: sepals ovate, 1.5–2.2 mm, pubescent, (trichomes simple and short-stalked, 2–5-rayed);
    petals white, obovate, 2–3.5 × 1.5–2 mm;
    anthers ovate, 0.2–0.3 mm.
    Fruits linear to narrowly lanceolate, slightly twisted or plane, flattened, 5–11 × 1.1–1.6 (–2) mm;
    ovules 16–20 per ovary;
    style 0.1–0.3 mm.
    Seeds ovoid, 0.6–0.9 × 0.3–0.5 mm. 2n = 16.