Echinacea purpurea |
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eastern purple coneflower, purple coneflower |
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Habit | Plants 50–120 cm (roots fibrous). |
Herbage | usually hairy (hairs spreading to ascending, to 2 mm), sometimes glabrous. |
Stems | usually brownish green. |
Basal leaves | petioles 0–17(–25) cm; blades 3- or 5-nerved, ovate to narrowly lanceolate, 5–30 × (1–)5–12 cm, bases usually rounded to cordate, margins usually serrate to dentate, rarely entire. |
Peduncles | 8–25 cm. |
Receptacles | paleae 9–15 mm, tips red-orange, straight or slightly curved, sharp-pointed. |
Ray corollas | pink to purple, laminae spreading to recurved, 30–80 × 7–19 mm, sparsely hairy abaxially. |
Disc corollas | 4.5–5.7 mm, lobes greenish to pink or purple. |
Phyllaries | linear to lanceolate, 8–17 × 1–8 mm. |
Cypselae | off-white, 3.5–5 mm, usually glabrous (ray cypselae sometimes hairy on angles); pappi ca. 1.2 mm (teeth equal). |
Discs | conic, 14–45 × 20–40 mm. |
2n | = 22. |
Echinacea purpurea |
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Phenology | Flowering late spring–summer. |
Habitat | Rocky, open woods, thickets, prairies, especially near waterways |
Elevation | 10–400+ m (0–1300+ ft) |
Distribution |
AL; AR; FL; GA; IA; IL; IN; KS; KY; LA; MO; MS; NC; OH; OK; TN; TX; WI; ON
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Discussion | Echinacea purpurea is introduced in Ontario. It and cultivars derived from it are extensively grown ornamentals in gardens, wildflower roadside plantings, and prairie restoration sites. Because of its popularity as an herbal remedy, it is also grown commercially. As a result of such activities, naturalized and persisting populations may extend the natural range of E. purpurea. Selections used for such plantings may differ from native forms. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 21, p. 91. |
Parent taxa | Asteraceae > tribe Heliantheae > subtribe Ecliptinae > Echinacea |
Sibling taxa | |
Synonyms | Rudbeckia purpurea |
Name authority | (Linnaeus) Moench: Methodus, 591. (1794) |
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