Page authors: Ben Legler, David Giblin
Cardamine cordifolia
heart-leaved bittercress, large mountain bittercress, Lyall's bittercress

Distribution: Occurring in the Cascades Range and in southeastern Washington; British Columbia south to California, east to Idaho.

Habitat: Mountain stream banks to subalpine meadows.

Flowers: June-September

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bees, flies


Perennial herb to 60 cm tall from creeping rhizomes.


Alternate, simple, broadly rounded, to 10 cm across.


White, with 4 petals; in clusters at stem tips.


Narrow capsules (siliques) to around 3 cm long.

Identification Notes:

Easily distinguished from our other Cardamine species by its simple broadly rounded leaves, white petals, and robust size.

Accepted Name:
Cardamine cordifolia A. Gray
Publication: Mem. Amer. Acad. Arts, n. s. 4: 8. 1849.

Synonyms & Misapplications:
Cardamine cordifolia A. Gray var. cordifolia [HC]
Cardamine cordifolia A. Gray var. lyallii (S. Watson) A. Nelson & J.F. Macbr. [HC]
Cardamine lyallii S. Watson
Additional Resources:

PNW Herbaria: Specimen records of Cardamine cordifolia in the Consortium of Pacific Northwest Herbaria database

WA Flora Checklist: Cardamine cordifolia checklist entry

OregonFlora: Cardamine cordifolia information

E-Flora BC: Cardamine cordifolia atlas page

CalPhotos: Cardamine cordifolia photos

22 photographs:
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