Difference between revisions of "Helianthus ×laetiflorus Persoon (Q2761)"

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Latest revision as of 12:52, 24 June 2022

Helianthus ×laetiflorus is a taxon with the rank species within the genus Helianthus
Language Label Description Also known as
English
Helianthus ×laetiflorus Persoon
Helianthus ×laetiflorus is a taxon with the rank species within the genus Helianthus

    Statements

    taxon/id/Helianthus ×laetiflorus Persoon
    0 references
    Helianthus ×laetiflorus Persoon
    Helianthus ×laetiflorus
    Persoon
    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
    Helianthus ×laetiflorus
    hélianthe à belles fleurs (French)
    soleil vivace (French)
    soleil fastueux (French)
    beautiful sunflower (English)
    cheerful sunflower (English)
    showy sunflower (English)
    perennial sunflower (English)
    mountain sunflower (English)
    Hélianthe à belles fleurs (English)
    1 reference
    Hinds, H.R. 2000. Flora of New Brunswick : a manual for the identification of the vascular plants of New Brunswick. 2nd edition. Biology Department, University of New Brunswick, Fredericton. 699 pp.
    Newfoundland, CA
    1 reference
    Meades, S., S.G. Hay & L. Brouillet. 2000. Annotated Checklist of the Vascular Plants of Newfoundland and Labrador. Published in association with A Digital Flora of Newfoundland and Labrador Vascular Plants. http://www.digitalnaturalhistory.com/meades.htm (consulted 2009-09-02) http://www.digitalnaturalhistory.com/meades.htm
    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.
    1 reference
    Marie-Victorin, Fr. 1995. Flore laurentienne. 3e éd. Mise à jour et annotée par L. Brouillet, S.G. Hay, I. Goulet, M. Blondeau, J. Cayouette et J. Labrecque. Gaétan Morin éditeur. 1093 pp.
    Flowering late summer–fall.
    Stems erect, slightly hairy.
    petioles 1–5 cm;
    blades lanceolate to lanceovate, 10–25 × 2–8 cm, bases cuneate, margins serrulate to serrate, abaxial faces sparsely hispid, glanddotted.
    Peduncles 7–14 cm.
    Involucres hemispheric, 14–18 mm diam.
    Phyllaries 25–35, oblong-lanceolate, 7–12 × 3–3.5 mm (strongly unequal), apices acuminate, abaxial faces usually puberulent, glanddotted.
    Paleae 9–10 mm, entire or 3-toothed (apices reddish).
    Ray-florets 15–20;
    laminae 25–37 mm.
    Disc-florets 75+;
    corollas 7–7.5 mm, lobes reddish (at least at tips);
    anthers dark, appendages dark to yellowish (style-branches yellow).
    Cypselae (seldom formed) 4–5 mm, glabrate;
    pappi of 2 aristate scales 2.5–3.5 mm. 2n = 102.