Symphyotrichum foliaceum |
Symphyotrichum prenanthoides |
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leafybract aster |
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Habit | Plants perennial, 0.5–4(6) dm; from elongate rhizomes. | |
Stems | ascending to erect, glabrous to sparsely pubescent. |
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Leaves | < 7 × as long as wide; margins generally entire; surfaces usually glabrous; basal present at flowering, elliptic to obovate, 3–20 cm; tips acute or sometimes rounded, petiolate; cauline elliptic to obovate, 3–12 cm, bases cuneate to sometimes rounded, subpetiolate to sessile. |
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Inflorescences | open; panicle-like arrays. |
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Involucres | 6–16 mm. |
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Ray florets | 15–50(60); rays 8–18 mm, violet-purple. |
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Phyllaries | in 4–6 subequal series, oblanceolate to oblong or linear; tips acute; surfaces glabrous or puberulent; inner bases scarious-margined; tips green; outer often leaf-like, bases not scarious-margined. |
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Fruits | pubescent; pappus bristles 5–8 mm, white to pale brown. |
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Heads | 1–12. |
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2n | =16, 32, 48, 64. |
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Symphyotrichum foliaceum |
Symphyotrichum prenanthoides |
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Distribution | ||
Discussion | Western North America. 4 varieties; 2 varieties treated in Flora. Varieties of S. foliaceum intergrade with S. spathulatum and S. cusickii where their ranges overlap. |
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Source | Flora of Oregon, volume 2, page 357 Geraldine Allen |
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Sibling taxa | ||
Subordinate taxa | ||
Synonyms | Aster foliaceus | |
Web links |
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