Heliopsis helianthoides (Linnaeus) Sweet (Q2771)

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Heliopsis helianthoides is a taxon with the rank species within the genus Heliopsis
Language Label Description Also known as
English
Heliopsis helianthoides (Linnaeus) Sweet
Heliopsis helianthoides is a taxon with the rank species within the genus Heliopsis

    Statements

    taxon/id/Heliopsis helianthoides (Linnaeus) Sweet
    0 references
    Heliopsis helianthoides (Linnaeus) Sweet
    Heliopsis helianthoides
    (Linnaeus) Sweet
    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
    Heliopsis helianthoides
    false sunflower (English)
    smooth oxeye (English)
    sweet oxeye (English)
    sunflower heliopsis (English)
    sunflower-everlasting (English)
    héliopsis faux-hélianthe (French)
    False sunflower (English)
    oxeye (English)
    smooth oxeye (English)
    héliopside faux-hélianthe (English)
    Aerial stems (from creeping rhizomes to 4 cm × 2–6 mm, rhizome internodes mostly 2–10 mm) 1–10+, stramineous to reddish-brown, glabrous or hairy.
    Leaf-blades ovate to deltate-lanceolate, 6–12 (–15) × 2–6 (–12) cm, margins regularly to irregularly and coarsely dentate, apices acute to acuminate, faces glabrous, sparsely pubescent, moderately to densely scabrellous, or scabrous.
    Peduncles 9–25 cm.
    Involucres 12–25 mm diam.
    Phyllaries glabrescent to densely pubescent on margins, apices, and abaxial faces.
    Paleae lanceolate to oblong, apices obtuse, faces glabrous.
    Ray-florets 10–18;
    corollas golden yellow, laminae mostly 2–4 cm × 6–13 mm.
    Disc-florets 10–75+;
    corollas yellowish to brownish yellow (lobes brighter than tubes), 4–5 mm, glabrous.
    Cypselae 4–5 mm, glabrous or pubescent on angles, smooth;
    pappi 0 or of 2–4 minute, toothlike scales.
    2n = 28 (variety unknown).