Pyrrocoma uniflora (Hooker) Greene (Q2286)

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Pyrrocoma uniflora is a taxon with the rank species within the genus Pyrrocoma
Language Label Description Also known as
English
Pyrrocoma uniflora (Hooker) Greene
Pyrrocoma uniflora is a taxon with the rank species within the genus Pyrrocoma

    Statements

    taxon/id/Pyrrocoma uniflora (Hooker) Greene
    0 references
    Pyrrocoma uniflora (Hooker) Greene
    Pyrrocoma uniflora
    (Hooker) Greene
    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
    one-flowered goldenweed (English)
    plantain goldenweed (English)
    pyrrocome uniflore (French)
    Plantain goldenweed (English)
    Stems 1–7, curved-ascending to decumbent, red-tinged, sparsely leafy to almost naked, glabrate to lanate or tomentulose, eglandular.
    Leaves: basal petiolate, blades linear to oblanceolate or elliptic, 40–150 × 3–20 mm, margins usually sharply dentate to laciniate, rarely entire;
    cauline sessile, few, blades lanceolate, 20–50 × 2–6 mm, bases cordate, clasping;
    faces glabrous, sparsely to densely shaggy-tomentose or lanate, eglandular.
    Heads usually borne singly, sometimes 2–4 in racemiform arrays.
    Peduncles 2–12 cm.
    Involucres hemispheric, 6–13 × 10–20 mm.
    Phyllaries in 2 series, appresssed or loose, linear-lanceolate, 6–11 mm, subequal or unequal (sometimes outer ± shorter and green throughout), margins ciliate, faces usually villous to lanate, rarely glabrous.
    Ray-florets 18–50;
    corollas 7–11 mm.
    Disc-florets 35–60;
    corollas 5–8 mm.
    Cypselae subcylindric, 2–4 mm, obscurely nerved and angled, faces sericeous;
    pappi tawny, 5–7 mm.