Ratibida pinnata (Ventenat) Barnhart (Q2781)

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Ratibida pinnata is a taxon with the rank species within the genus Ratibida
Language Label Description Also known as
English
Ratibida pinnata (Ventenat) Barnhart
Ratibida pinnata is a taxon with the rank species within the genus Ratibida

    Statements

    taxon/id/Ratibida pinnata (Ventenat) Barnhart
    0 references
    Ratibida pinnata (Ventenat) Barnhart
    Ratibida pinnata
    (Ventenat) Barnhart
    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
    ratibida à feuilles pennées (French)
    grey-headed prairie coneflower (English)
    pinnate prairie coneflower (English)
    Grayhead or pinnate prairie coneflower (English)
    1 reference
    Newmaster, S.G., A. Lehela, M.J. Oldham, P.W.C. Uhlig & S. McMurray. 1998. Ontario Plant List. Ontario Forest Research Institute, Sault Ste. Marie, Ontario. Forest Information Paper No. 123. 550 pp.
    Flowering May–Oct.
    prairies
    woodland openings
    borders
    limestone outcrops
    Leaves 5–40 × 3–15+ cm, pinnatifid to pinnate, lobes 3–9, narrowly lanceolate to ovate, 1–15 × 0.2–3.5 cm, faces strigose, glanddotted.
    Heads mostly 1–12, held well beyond leaves.
    Peduncles 3–27+ cm (ribs tan, prominent).
    Phyllaries 10–15, outer linear, 3–15 × 1–3 mm, inner lanceolate-ovate, 3–6 × 0.7–3 mm.
    Paleae 1.2–5 × 1–1.8 mm, resin-glands linear to oblanceolate, 2–3.3 mm.
    Ray-florets 6–15;
    corollas yellow, 2.5–3.8 mm, tubes ca. 1–3 mm, hirsute, laminae linear-elliptic to oblong-oblanceolate, 16–60 × 4–15 mm.
    Discs ellipsoid to globular or ovoid, 10–25 × 10–18 mm.
    Disc-florets 100–200+;
    corollas greenish yellow, often purplish distally, 2.5–3.8 mm;
    style-branches ca. 1.8 mm, proximal 1/2 stigmatic, apices subulate.
    Cypselae linear-oblanceoloid, 2–4 × 1–2.3 mm, margins usually glabrous, sometimes adaxial ciliate;
    pappi 0 or of 1–2 toothlike projections.