Senecio integerrimus Nuttall (Q2947)

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Senecio integerrimus is a taxon with the rank species within the genus Senecio
Language Label Description Also known as
English
Senecio integerrimus Nuttall
Senecio integerrimus is a taxon with the rank species within the genus Senecio

    Statements

    taxon/id/Senecio integerrimus Nuttall
    0 references
    Senecio integerrimus Nuttall
    Senecio integerrimus
    Nuttall
    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
    western ragwort (English)
    western groundsel (English)
    entire-leaved ragwort (English)
    entire-leaved groundsel (English)
    lamb's-tongue ragwort (English)
    séneçon de l'Ouest (French)
    Herbage arachnose, loosely tomentose, or villous (hairs crisped, jointed), glabrescent.
    blades elliptic, lanceolate, linear, oblanceolate, rounded-deltate, or suborbiculate, 6–25 × 1–6 cm, bases ± tapered or truncate to cordate, margins entire or ± dentate (distal leaves sessile, bractlike).
    Heads 6–20 (–40+) in corymbiform arrays (peduncle of terminal head often shorter than others).
    Calyculi of 1–5+ linear to filiform bractlets (seldom more than 2 mm).
    Phyllaries usually ± 13 or ± 21, rarely ± 8, (4–) 5–12 (–15) mm, tips usually black, sometimes green.
    Ray-florets usually ± 8 or ± 13, sometimes 0;
    corolla laminae 6–15 (–20) mm (usually yellow, ochroleucous to white in one variety).