Arnica rydbergii Greene (Q2836)

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Arnica rydbergii is a taxon with the rank species within the genus Arnica
Language Label Description Also known as
English
Arnica rydbergii Greene
Arnica rydbergii is a taxon with the rank species within the genus Arnica

    Statements

    taxon/id/Arnica rydbergii Greene
    0 references
    Arnica rydbergii Greene
    Arnica rydbergii
    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
    arnica de Rydberg (French)
    Rydberg's arnica (English)
    subalpine arnica (English)
    subalpine leopardbane (English)
    Rydberg’s arnica (English)
    1 reference
    Moss, E.H. 1983. Flora of Alberta. 2nd edition, revised by J.G. Packer. University of Toronto Press, Toronto. 687 pp.
    1 reference
    Douglas, G.W., G.B. Straley, D.V. Meidinger & J. Pojar. 1998. Illustrated Flora of British Columbia. B.C. Ministry of Environment, Lands & Parks and B.C. Ministry of Forests. Victoria. Crown Publications. 8 vols.
    Flowering Jul–Aug.
    dry to mesic
    exposed
    rocky alpine slopes
    ridges
    alpine meadows
    1200–3400 m
    Plants 8–35 cm.
    Stems (branches from rhizomes) simple.
    Leaves 2–4 pairs (basal often persistent on sterile rosettes), mostly cauline;
    petiolate (at least basal) or sessile;
    blades oblanceolate to spatulate, 2–7 × 0.5–2.5 cm, margins usually entire, sometimes denticulate, rarely dentate, apices usually acute, sometimes obtuse, faces sparsely puberulent, moderately pubescent distally, stipitate-glandular.
    Heads 1–3 (–5).
    Involucres turbinate-campanulate.
    Phyllaries 9–15, linear-oblong to narrowly lanceolate.
    Ray-florets 6–10;
    Disc-florets: corollas yellow;
    Cypselae brown, 4–7 mm, densely hirsute (not stipitate-glandular);
    pappi white, bristles barbellate.