Packera tridenticulata (Rydberg) W. A. Weber & Á. Löve (Q2909)

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

    Statements

    taxon/id/Packera tridenticulata (Rydberg) W.A. Weber & Á. Löve
    0 references
    Packera tridenticulata (Rydberg) W.A. Weber & Á. Löve
    Packera tridenticulata
    (Rydberg) 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
    Packera tridenticulata
    (Rydberg) W.A. Weber & Á. Löve
    séneçon tridenticulé (French)
    three-toothed groundsel (English)
    three-toothed ragwort (English)
    Threetooth ragwort (English)
    Flowering late May–early Jul.
    dry areas
    roadsides
    gravelly
    sandy slopes
    short-grass prairies
    sagebrush scrubs
    1000–2000 m
    Stems 1 or multiple, clustered, usually glabrous, rarely sparsely floccose-tomentose, leaf-axils sometimes tomentose.
    Basal leaves (and proximal cauline, relatively thick and turgid) petiolate;
    blades lanceolate or narrowly oblanceolate, 20–40+ × 5–15 mm, bases tapering, margins usually entire, sometimes subpinnatisect (apices subentire or dentate).
    Cauline leaves gradually reduced (± petiolate or sessile).
    Heads 4–15+ in corymbiform arrays.
    Peduncles bracteate, glabrous or sparsely tomentose.
    Calyculi inconspicuous.
    Ray-florets 8–10 (–13);
    corolla laminae 5–8+ mm.
    Disc-florets 45–60+;
    corolla-tubes 3–3.5 mm, limbs 4–5 mm.
    Cypselae 1.5–2.5 mm, glabrous or sparsely hirtellous on ribs;
    pappi 5–6 mm. 2n = 46.