E-Flora BC: Electronic Atlas of the Flora of British Columbia

Anemone piperi Britton ex Rydb.
Piper's anemone
Ranunculaceae (Buttercup family)

Introduction to Vascular Plants

© Ed McMackin  Email the photographer   (Photo ID #88428)

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Distribution of Anemone piperi
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Species Information

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Perennial herb from a vertical or ascending rhizome; stems erect, 1 or more, 10-35 cm tall.
Basal, 1 or 2 or absent, ascending, 3-parted, the leaflets 2.5-6 cm long, coarsely toothed on the upper 1/2 to 2/3, tips pointed, lateral leaflets sometimes lobed, soft-hairy or smooth; stalks 10-20 cm long.
Inflorescence a solitary, terminal flower; flower stalks soft-hairy above; involucral bracts 3, leaf-like, stalked, similar to basal leaves; petals absent; sepals 5 to 7, petal-like, white, rarely pinkish, elliptic egg-shaped to egg-shaped, 8-20 mm long, 6-8 mm wide, smooth; stamens 35-55 (90).
Achenes, several in a nearly spheric head on stalks 2-5 cm long, the achenes ellipsoid to egg-shaped, 3-4 mm long, 1.5-2 mm wide, not winged, soft-hairy; beaks straight or slightly curved, 0.5-1 mm long, smooth or minutely-hairy near attachment.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Moist forests in the montane zone; rare in SE BC, known only from the Kaslo area; S to ID, MT, UT and OR.

Source: The Illustrated Flora of British Columbia


The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References