Cirsium edule var. wenatchense |
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Wenatchee thistle |
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Peduncles | 10–30 cm. |
Involucres | 3–4 × 4–5 cm, moderately arachnoid. |
Corollas | 29–33 mm, tubes 9–11 mm, throats 8–12 mm, lobes 9–10 mm; style tips 3–4 mm. |
Heads | mostly borne singly. |
Cypselae | dark brown, 4.5–6 mm; pappi 20–25 mm. |
Phyllary | apices widely spreading, long-acicular, spines 5–15 mm. |
Cirsium edule var. wenatchense |
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Phenology | Flowering summer (Jul–Aug). |
Habitat | Stream banks, rocky slopes |
Elevation | 600–1200 m (2000–3900 ft) |
Distribution |
WA |
Discussion | Of conservation concern. Variety wenatchense is known only from the Wenatchee Mountains of central Washington. Little is known of its ecology. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 19, p. 147. |
Parent taxa | |
Sibling taxa | |
Name authority | D. J. Keil: Sida 21: 213. (2004) |
Web links |
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