treatments/Cirsium douglasii var. breweri

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Cirsium douglasii   var. breweri Phytologia. 73: 313. 1992.

Brewer’s thistle


Plants to 250 cm. Cauline leaves usually unlobed or shallowly lobed, spines usually less than 2–7 mm. Heads mostly 2–3 cm. 2n = 30.

Flowering summer (Jun–Aug). wet soil , streams , fens , marshes , springs in montane coniferous forest areas , often on serpentine ;1200–1900 m;Calif.; Nev.; Oreg.;

Variety breweri grows from the eastern North Coast Ranges of California and the Klamath and Siskiyou ranges east to the northen Sierra Nevada.