Erigeron poliospermus A. Gray in A. Gray et al. (Q2228)
Erigeron poliospermus is a taxon with the rank species within the genus Erigeron
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English |
Erigeron poliospermus A. Gray in A. Gray et al.
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Erigeron poliospermus is a taxon with the rank species within the genus Erigeron
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Statements
taxon/id/Erigeron poliospermus A. Gray
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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
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CA-BC
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US-ID
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US-OR
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US-WA
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taprooted, caudices simple or with relatively short and thick branches.
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Stems erect, sometimes branched, hirsute (hairs unequal), ± minutely glandular.
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Leaves mostly basal (persistent; petioles prominently ciliate, hairs spreading, thick-based);
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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.
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Heads 1 (–3) (from branches at or proximal to midstem).
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Involucres 5–9 × 9–20 mm.
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Ray-florets 15–45 or 0;
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corollas usually pink to bluish purple, sometimes white, 5–14 mm, laminae coiling.
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Disc corollas (3.5–) 4–5.5 mm.
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Cypselae 2.5–3 mm, 2-nerved, faces densely strigoso-sericeous (obscured);
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pappi: outer of setae, inner of 20–30 bristles.
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with relatively short and thick branches
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glandular
more or less minutely
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narrowly oblanceolate
spatulate
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hirsute
sometimes coarsely; coarsely; sparsely to densely
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