Arnica gracilis Rydberg (Q2827)

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

    Statements

    taxon/id/Arnica gracilis Rydberg
    0 references
    Arnica gracilis Rydberg
    Arnica gracilis
    Rydberg
    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 grĂȘle (French)
    slender arnica (English)
    small-headed arnica (English)
    slender leopardbane (English)
    tall mountain arnica (English)
    Smallhead arnica (English)
    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.
    1 reference
    Moss, E.H. 1983. Flora of Alberta. 2nd edition, revised by J.G. Packer. University of Toronto Press, Toronto. 687 pp.
    Flowering Jul–Aug.
    exposed
    alpine slopes
    subalpine meadows
    1200–2500 m
    Plants 10–30 cm.
    Stems (often 5–10 in dense clumps) branched distally.
    Leaves 2–3 pairs, mostly cauline (basal leaves often persistent on sterile rosettes, similar to cauline leaves);
    petiolate (petioles narrowly to broadly winged, distal pair of leaves often reduced, connate-perfoliate);
    blades ovate to ovatelanceolate, 2–6 × 1–3 cm, margins irregularly serrate to subentire, apices acute, faces: abaxial glandular, adaxial stipitate-glandular.
    Heads (1–) 5–15.
    Involucres turbinate-campanulate.
    Phyllaries 10–16, ovatelanceolate.
    Ray-florets 5–12;
    Disc-florets: corollas yellow;
    Cypselae black, 4.5–7 mm, hairy (hairs duplex) and stipitate-glandular;
    pappi white, bristles barbellate.