Descurainia pinnata (Walter) Britton (Q3697)

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Descurainia pinnata is a taxon with the rank species within the genus Descurainia
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English
Descurainia pinnata (Walter) Britton
Descurainia pinnata is a taxon with the rank species within the genus Descurainia

    Statements

    taxon/id/Descurainia pinnata (Walter) Britton
    0 references
    Descurainia pinnata (Walter) Britton
    Descurainia pinnata
    (Walter) Britton
    FNA Editorial Committee. 2010. Flora of North America north of Mexico. Volume 7: Magnoliophyta: Salicaceae to Brassicaceae. Oxford University Press, New York.
    accepted
    moutarde-tanaisie verte (French)
    pinnate tansy mustard (English)
    western tansy mustard (English)
    green tansy mustard (English)
    n Mexico
    sparsely to densely pubescent, sometimes glabrous distally, canescent or not, trichomes dendritic.
    Stems erect, unbranched or branched basally and/or distally, (0.8–) 1.3–5.7 (–9.2) dm.
    Basal leaves: petiole 0.5–3.6 cm;
    blade 1-pinnate or 2-pinnate, ovate or oblong to oblanceolate in outline, 1–15 cm, lateral lobes (4–9 pairs), linear or oblanceolate to ovate, margins entire or dentate.
    Cauline leaves sessile or shortly petiolate;
    blade smaller distally, distal lobes often narrower, surfaces densely pubescent.
    Fruiting pedicels usually ascending to divaricate or horizontal, rarely descending (at 20–110º angle), straight or slightly recurved, 4–18 (–23) mm.
    Flowers: sepals spreading to ascending, yellow, purple, or rose, oblong, 0.8–2.6 mm, pubescent;
    petals (whitish or yellow), narrowly oblanceolate, 1–3 × 0.3–1 mm;
    median filaments 1–2.8 mm;
    anthers 0.2–0.4 mm.
    Fruits erect to ascending, usually clavate, rarely broadly linear (wider distally), not torulose, 4–13 (–17) × 1.2–2.2 mm;
    valves each with distinct midvein;
    ovules 16–40 per ovary;
    style obsolete, 0.02–0.2 mm, glabrous.
    Seeds biseriate, reddish-brown, oblong, 0.6–0.9 × 0.4–0.5 mm.