Agoseris grandiflora (Nuttall) Greene (Q3061)

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Agoseris grandiflora is a taxon with the rank species within the genus Agoseris
Language Label Description Also known as
English
Agoseris grandiflora (Nuttall) Greene
Agoseris grandiflora is a taxon with the rank species within the genus Agoseris

    Statements

    taxon/id/Agoseris grandiflora (Nuttall) Greene
    0 references
    Agoseris grandiflora (Nuttall) Greene
    Agoseris grandiflora
    (Nuttall) Greene
    FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 19: Magnoliophyta: Asteridae, part 6: Asteraceae, part 1. Oxford University Press, New York.
    accepted
    agoséride grandiflore (French)
    large-flowered agoseris (English)
    grassland agoseris (English)
    big-flowered agoseris (English)
    large-flowered false-dandelion (English)
    large-flowered goat-chicory (English)
    Grassland agoseris (English)
    Stems usually 0, rarely weakly developed.
    Leaves erect to ascending;
    petioles often purplish, margins ciliate to tomentose;
    blades usually linear to oblanceolate, rarely spatulate, 10–40 (–50) cm, margins usually dentate to lobed, or laciniately pinnatifid, rarely subentire, lobes 3–5 pairs, opposite to irregular, linear to lanceolate, usually antrorse, sometimes spreading;
    lobules often present, faces ± villous to canescent.
    Peduncles elongating after flowering, (15–) 25–60 (–96) cm in fruit, ± glabrate, or apically villous to tomentose, eglandular, sometimes bracteate.
    Involucres campanulate to hemispheric, 2–5 cm in fruit.
    Phyllaries in 4–5 series, green or medially rosy purple and/or spotted, subequal to unequal, margins occasionally dentate, ciliate or lanate, sometimes glabrous, faces glabrous or hairy, eglandular;
    outer subequal to or surpassing inner at flowering, spreading, adaxially tomentose;
    inner erect, greatly elongating after flowering.
    Receptacles epaleate.
    Florets 40–500;
    corollas yellow, tubes 4–7 (–10) mm, ligules 3–7 × ca. 1 mm;
    anthers 1–3 mm.
    Cypselae 9–28 mm, bodies fusiform, 3–7 mm, beaks 9–21 mm, lengths mostly 3–4 times bodies;
    ribs ridged to subalate, rarely nerviform, straight, ± glabrous;
    pappus bristles in 2–3 series, 7–15 mm. 2n = 18.