Rudbeckia laciniata var. ampla (A. Nelson) Cronquist in C. L. Hitchcock et al. (Q2793)

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Rudbeckia laciniata var. ampla is a taxon with the rank variety within the species Rudbeckia laciniata
Language Label Description Also known as
English
Rudbeckia laciniata var. ampla (A. Nelson) Cronquist in C. L. Hitchcock et al.
Rudbeckia laciniata var. ampla is a taxon with the rank variety within the species Rudbeckia laciniata

    Statements

    taxon/id/Rudbeckia laciniata var. ampla (A. Nelson) A. Cronquist
    0 references
    Rudbeckia laciniata var. ampla (A. Nelson) A. Cronquist
    Rudbeckia laciniata var. ampla
    (A. Nelson) A. Cronquist
    FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 21: Magnoliophyta: Asteridae, part 8: Asteraceae, part 3. Oxford University Press, New York.
    accepted
    Rudbeckia laciniata var. ampla
    rudbeckie élevée (French)
    Rocky Mountain cut-leaved coneflower (English)
    tall coneflower (English)
    green-headed coneflower (English)
    Rocky Mountain cutleaf coneflower (English)
    Flowering summer–fall.
    wet sites
    streams
    open meadows
    1700–2700 m
    Leaves: basal 20–50 × 10–25 cm, blades pinnately compound to pinnatifid (basal leaflets or lobes often pinnatifid);
    proximal and mid cauline blades 5–9-lobed;
    adaxial faces glabrous or sparsely hairy (hairs arching, 1-seriate).
    Receptacles ovoid;
    paleae 4.5–6.5 mm.
    Ray laminae 25–50 × 7–12 mm.
    Discs (17–) 20–30 × 12–20 mm.
    Cypselae 4–5.5 mm;
    pappi mostly longer than 0.7 mm. 2n = 38.