Arctanthemum arcticum (Linnaeus) Tzvelev in A. I. Tolmatchew (Q2091)

From Canadian Flora Commons
Revision as of 11:35, 23 June 2022 by WikibaseAdmin (talk | contribs) (‎Changed label, description and/or aliases in en, and other parts)
Jump to navigation Jump to search
Arctanthemum arcticum is a taxon with the rank species within the genus Arctanthemum
Language Label Description Also known as
English
Arctanthemum arcticum (Linnaeus) Tzvelev in A. I. Tolmatchew
Arctanthemum arcticum is a taxon with the rank species within the genus Arctanthemum

    Statements

    taxon/id/Arctanthemum arcticum (Linnaeus) Tzvelev
    0 references
    Arctanthemum arcticum (Linnaeus) Tzvelev
    Arctanthemum arcticum
    (Linnaeus) Tzvelev
    FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 19: Magnoliophyta: Asteridae, part 6: Asteraceae, part 1. Oxford University Press, New York.
    accepted
    Arctanthemum arcticum
    arctic daisy (English)
    chrysanthème arctique (French)
    Perennials, forming tufts of 1–10+ rosettes;
    rhizomes at or below-ground, fleshy, tough, branched;
    taproots (young plants) 3–6 (–10) mm diam.
    Stems glabrous or sparsely woolly proximally to ± densely white-woolly near heads.
    Leaves sometimes glaucous;
    petioles 0–95 mm;
    bases cuneate to truncate, sheathing to clasping (distal), margins revolute, teeth obtuse to rounded, sometimes mucronulate, faces glabrous or sparsely woolly, glabrescent;
    basal and proximal cauline blades ± fan-shaped to cuneate or spatulate, 6–50 × 4–35 mm, lobes usually 3–7, apices blunt;
    distal blades linear, 4–35 × 1–28 (–40) mm, bases attenuate, margins crenate, dentate, or entire, apices acute or obtuse;
    faces ± woolly, glabrescent.
    Peduncles usually bracteate, bracts 0–4, linear-lanceolate to linear, 6–19 mm.
    Ray laminae 8–12 mm.
    Disc corollas: tubes greenish yellow, (1.1–) 1.4–2 mm, throats and lobes yellow turning brownish, throats 0.7–1 mm, sometimes very sparsely glandular, lobes (0.25–) 0.4–0.6 mm.
    Cypselae 1.5–2.5 mm. 2n = 18 (72?).