Difference between revisions of "Cirsium edule var. macounii"
Sida 21: 213. 2004.
Common names: Macoun’s thistle
Basionym: Carduus macounii Greene Ottawa Naturalist 16: 38. 1902
Synonyms: Cirsium macounii (Greene) Petrak
Treatment appears in FNA Volume 19. Treatment on page 147.
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|tribe=Asteraceae tribe Cardueae | |tribe=Asteraceae tribe Cardueae | ||
|genus=Cirsium | |genus=Cirsium | ||
Revision as of 20:15, 16 December 2019
Heads often densely crowded at stem tips. Peduncles 0–5(–10) cm. Involucres 2–4 × 2.5–4 cm, usually densely arachnoid. Phyllary apices widely spreading, long-acicular, spines 5–15 mm. Corollas (15–)18–22 mm, tubes 7–11 mm, throats (4–)5–8.5 mm, lobes (2–)4.5–7 mm; style tips 4–5 mm. Cypselae dark brown, 5–6.5 mm; pappi 20–25 mm. 2n = 34 (as C. edule).
Phenology: Flowering Jun–Oct.
Habitat: Damp soil, mostly montane meadows, forests, alpine
Elevation: 0–1900 m
Distribution
B.C., Alaska, Oreg., Wash.
Discussion
Variety macounii ranges from the coastal mountains of southeastern Alaska and British Columbia to Vancouver Island, the Olympic Peninsula, and northern Cascades of Washington, and the mountains of northwestern Oregon.
Selected References
None.
Lower Taxa
None.