Page authors: Don Knoke, David Giblin
Anemone deltoidea
threeleaf anemone, Columbian windflower

Distribution: Occurring west of the Cascades crest and east in the Columbia River Gorge in Washington; Washington to California.

Habitat: Dry to moist woodlands at low to middle elevations.

Flowers: April-May

Origin: Native

Conservation Status: Not of concern


Herbaceous perennial from slender, horizontal rhizomes, the flowering stems 1-3 dm. tall, glabrous to stiff-hairy.


Basal leaves usually solitary, the blade tri-foliate, the leaflets short-petiolate, ovate, with coarse, rounded teeth, usually glabrous; the 3 involucral leaves simple, up to 8 cm. long, very similar to the leaflets of the basal leaves.


Flowers solitary; sepals usually 5, white, ovate to oblanceolate, 1.5-2.5 cm. long, glabrous; petals none; stamens and pistils numerous; style shorter than the achene.


Achene swollen, ovate, 2.5-4 mm. long.

Accepted Name:
Anemone deltoidea Hook.
Publication: Fl. Bor.-Amer. 1: 6. 1829.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Anemone deltoidea in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Anemone deltoidea checklist entry.

E-Flora BC: Anemone deltoidea atlas page.

CalPhotos: Anemone deltoidea photos.

USDA Plants: Anemone deltoidea information.

25 photographs:
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