Page authors: Don Knoke, David Giblin
Thalictrum dasycarpum
purple meadow-rue

Distribution: Occurring in the northeastern corner of Washington; Alberta south to Arizona, east to central North America.

Habitat: Meadowlands and moist woods.

Flowers: May-July

Origin: Native

Conservation Status: Not of concern


Dioecious perennials from rhizomes, the stems 0.6-2 meters tall, usually branched above.


Leaves alternate, chiefly cauline, the lower ones 3-5 times ternate, the leaflets ovate to obovate, 2-3 cm. long, acutely 3-lobed, the upper surface green, the lower surface pale, strongly nerved; upper leaves reduced.


Flowers in terminal and axillary panicles; sepal 4-5, greenish-white; petals none; stamens 18-25, the slender filaments 1.6-2.3 mm. long.


Achenes about 10, oblanceolate, the body about 4 mm. long, strongly veined, narrowed to a short stipe up to 1 mm. long, the persistent style and stigma forming a beak about 3 mm. long.

Accepted Name:
Thalictrum dasycarpum Fisch. & Avé-Lall.
Publication: Index Sem. Hort. Petrop. 8: 72. 1842. 1842.

Synonyms & Misapplications:
Thalictrum hypoglaucum Rydb.
Additional Resources:

PNW Herbaria: Specimen records of Thalictrum dasycarpum in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Thalictrum dasycarpum checklist entry.

E-Flora BC: Thalictrum dasycarpum atlas page.

CalPhotos: Thalictrum dasycarpum photos.

USDA Plants: Thalictrum dasycarpum information.

3 photographs:
Group by