Packera macounii (Greene) W. A. Weber & Á. Löve (Q2899)

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Packera macounii is a taxon with the rank species within the genus Packera
Language Label Description Also known as
English
Packera macounii (Greene) W. A. Weber & Á. Löve
Packera macounii is a taxon with the rank species within the genus Packera

    Statements

    taxon/id/Packera macounii (Greene) W.A. Weber & Á. Löve
    0 references
    Packera macounii (Greene) W.A. Weber & Á. Löve
    Packera macounii
    (Greene) W.A. Weber & Á. Löve
    FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 20: Magnoliophyta: Asteridae, part 7: Asteraceae, part 2. Oxford University Press, New York.
    accepted
    (Greene) W.A. Weber & Á. Löve
    séneçon de Macoun (French)
    Macoun's groundsel (English)
    Siskiyou Mountain ragwort (English)
    Siskiyou Mountain ragwort (English)
    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.
    Flowering early May–early Jul.
    streams
    roadsides
    clearings
    disturbed sites
    rocky soils
    woodlands
    Stems 1, sparsely to densely tomentose or glabrescent.
    Basal leaves (and proximal) petiolate;
    blades lanceolate to oblanceolate, 30–50+ × 10–20 mm, bases tapering, margins entire or shallowly toothed (slightly revolute).
    Cauline leaves gradually reduced (distal sessile, bractlike).
    Heads 6–15+ in corymbiform arrays.
    Peduncles inconspicuously bracteate or ebracteate, sparsely tomentose to glabrate.
    Calyculi 0 or inconspicuous.
    Ray-florets 8 (–13);
    corolla laminae 8–10+ mm.
    Disc-florets 30–40+;
    corolla-tubes 2.5–3.5 mm, limbs 2–3 mm.
    Cypselae 1.5–2 mm, glabrous;
    pappi 4–5 mm. 2n = 46, 92.