Erigeron philadelphicus Linnaeus (Q2224)

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Erigeron philadelphicus is a taxon with the rank species within the genus Erigeron
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English
Erigeron philadelphicus Linnaeus
Erigeron philadelphicus is a taxon with the rank species within the genus Erigeron

    Statements

    taxon/id/Erigeron philadelphicus Linnaeus
    0 references
    Erigeron philadelphicus Linnaeus
    Erigeron philadelphicus
    Linnaeus
    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 philadelphicus
    érigéron de Philadelphie (French)
    Philadelphia fleabane (English)
    Philadelphia daisy (English)
    common fleabane (English)
    marsh fleabane (English)
    vergerette de Philadelphie (French)
    Philadelphia fleabane (English)
    vergerette de Philadelphie (English)
    worldwide in temperate areas as a weed
    fibrous-rooted, caudices simple.
    Stems erect (green proximally, leafy to arrays), hirsuto-villous to villous proximally, loosely strigose to sparsely hirsute distally, minutely glandular.
    Leaves basal (persistent or withering by flowering) and cauline;
    basal blades oblanceolate to obovate, (15–) 30–110 (–150) × 10–25 (–40) mm, margins shallowly crenate to coarsely serrate or pinnately lobed, faces sparsely hirsute to villous, eglandular;
    cauline blades oblong-oblanceolate to lanceolate, gradually reduced distally (bases clasping to auriculate-clasping).
    Heads (1–) 3–35 usually in corymbiform arrays (ultimate branches arising near stem tips).
    Involucres 4–6 × 6–15 mm.
    Ray-florets 150–250 (–400);
    corollas usually white, sometimes pinkish, 5–10 mm, laminae not coiling or tardily coiling.
    Disc corollas 2.1–3.2 mm.
    Cypselae 0.6–1.1 mm, 2-nerved, faces sparsely strigose;
    pappi: outer of setae, inner of 15–20 (–30) bristles.