Erigeron formosissimus Greene (Q2191)

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

    Statements

    taxon/id/Erigeron formosissimus Greene
    0 references
    Erigeron formosissimus Greene
    Erigeron formosissimus
    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 formosissimus
    vergerette gracieuse (French)
    beautiful fleabane (English)
    Beautiful fleabane (English)
    rhizomatous, fibrous-rooted, rhizomes variably thick.
    Stems ascending, densely hirsute to hirsutulous or glabrous, minutely glandular to stipitate-glandular.
    Leaves basal (persistent) and cauline;
    basal blades oblanceolate to oblanceolate-spatulate, 20–100 (–150) × 4–10 (–15) mm, margins entire, closely ciliate, faces glabrous or sparsely hirsute, sometimes sparsely glandular;
    cauline blades becoming ovate to lanceolate, gradually reduced distally (bases clasping).
    Involucres 5–8 × 10–20 mm.
    Ray-florets 75–150;
    corollas blue to purple, rarely pink to white, 8–15 mm (ca. 1 mm wide), laminae coiling at tips or not at all.
    Disc corollas 3.5–4.5 mm.
    Cypselae (1.3–) 1.6–1.9 mm, 2-nerved, faces sparsely strigose;
    pappi: outer of setae, inner of 15–25 bristles.