Erysimum asperum (Nuttall) de Candolle (Q3821)

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Erysimum asperum is a taxon with the rank species within the genus Erysimum
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English
Erysimum asperum (Nuttall) de Candolle
Erysimum asperum is a taxon with the rank species within the genus Erysimum

    Statements

    taxon/id/Erysimum asperum (Nuttall) de Candolle
    0 references
    Erysimum asperum (Nuttall) de Candolle
    Erysimum asperum
    (Nuttall) de Candolle
    FNA Editorial Committee. 2010. Flora of North America north of Mexico. Volume 7: Magnoliophyta: Salicaceae to Brassicaceae. Oxford University Press, New York.
    accepted
    vélar des prairies (French)
    prairie rocket (English)
    western wallflower (English)
    1 reference
    University of British Columbia Herbarium (UBC), Vancouver, BC. Specimen. http://www.beatymuseum.ubc.ca/herbarium/index.html
    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
    Harms, V.L. 2006. Annotated catalogue of Saskatchewan vascular plants. http://www.biodiversity.sk.ca/Docs/AnnotatedCatalogueSKVascPlants2006.pdf
    1 reference
    Newmaster, S.G., A. Lehela, M.J. Oldham, P.W.C. Uhlig & S. McMurray. 1998. Ontario Plant List. Ontario Forest Research Institute, Sault Ste. Marie, Ontario. Forest Information Paper No. 123. 550 pp.
    1 reference
    Marie-Victorin, Fr. 1995. Flore laurentienne. 3e éd. Mise à jour et annotée par L. Brouillet, S.G. Hay, I. Goulet, M. Blondeau, J. Cayouette et J. Labrecque. Gaétan Morin éditeur. 1093 pp.
    Flowering Apr–Jun(-Aug).
    prairies
    sand dunes
    roadsides
    bluffs
    sandhills
    stream banks
    knolls
    open plains
    Stems erect, unbranched or branched distally, (0.6–) 1.2–6.5 (–8) dm.
    blade oblanceolate, 2–10 cm × (0.2–) 0.5–1.5 (–2.4) mm, base attenuate, margins dentate, apex acute.
    Cauline leaves (distal) sessile;
    blade margins entire or denticulate.
    Fruiting pedicels horizontal to divaricate, slender, narrower than fruit, 5–16 (–25) mm.
    Flowers: sepals oblong to linear-oblong, 8–12 mm, lateral pair slightly saccate basally;
    petals yellow, obovate to suborbicular, 13–22 × 4–9 mm, claw 8–15 mm, apex rounded;
    median filaments 8–14 mm;
    anthers linear, 2.5–4 mm.
    Fruits widely spreading or divaricate, narrowly linear, usually straight, rarely curved upward, not torulose, (3–) 5–12 (–14) cm × 1.2–2.7 mm, 4-angled, strongly (longitudinally) 4-striped;
    valves with prominent midvein and replum, densely pubescent outside, trichomes 2-rayed between midvein and replum, glabrous inside;
    ovules 72–120 per ovary;
    style cylindrical, slender, 1–4 mm, sparsely pubescent;
    stigma slightly 2-lobed, lobes as long as wide.