Erigeron poliospermus A. Gray in A. Gray et al. (Q2228)

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Erigeron poliospermus is a taxon with the rank species within the genus Erigeron
Language Label Description Also known as
English
Erigeron poliospermus A. Gray in A. Gray et al.
Erigeron poliospermus is a taxon with the rank species within the genus Erigeron

    Statements

    taxon/id/Erigeron poliospermus A. Gray
    0 references
    Erigeron poliospermus A. Gray
    Erigeron poliospermus
    A. Gray
    FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 20: Magnoliophyta: Asteridae, part 7: Asteraceae, part 2. Oxford University Press, New York.
    accepted
    Erigeron poliospermus
    cushion fleabane (English)
    purple cushion fleabane (English)
    hairy-seed fleabane (English)
    hairy-seed daisy (English)
    vergerette à graines poilues (French)
    taprooted, caudices simple or with relatively short and thick branches.
    Stems erect, sometimes branched, hirsute (hairs unequal), ± minutely glandular.
    Leaves mostly basal (persistent; petioles prominently ciliate, hairs spreading, thick-based);
    blades narrowly oblanceolate to spatulate, (20–) 30–80 × 2–4 (–12) mm, cauline sometimes continuing distally to about midstem, margins entire, usually ciliate, sometimes coarsely so, faces sparsely to densely hirsute, sometimes minutely glandular.
    Heads 1 (–3) (from branches at or proximal to midstem).
    Involucres 5–9 × 9–20 mm.
    Ray-florets 15–45 or 0;
    corollas usually pink to bluish purple, sometimes white, 5–14 mm, laminae coiling.
    Disc corollas (3.5–) 4–5.5 mm.
    Cypselae 2.5–3 mm, 2-nerved, faces densely strigoso-sericeous (obscured);
    pappi: outer of setae, inner of 20–30 bristles.