Distribution: West of the Cascades, British Columbia to northern Oregon
Habitat: Moist soil in shade, low elevations, from the coast to the foothills
Flowers: April - July
Growth Duration: Perennial
Conservation Status: Not of concern
Herbaceous perennial from thick rhizomes, the erect, hollow stems simple or somewhat branched above, 6-12 dm. tall.
Leaves alternate, cauline, usually 3, near or above the middle of the stem, tri- to quadripinnate, the ultimate segments oblong-elliptic to lanceolate, 2-8 cm. long and 5-25 mm. wide.
Inflorescence of 15- to 35-flowered, compound, terminal racemes; bracts inconspicuous; sepals 2, 1-7 mm. long, ovate to oblong, entire to laciniate; petals 4, pink, 20-30 mm. long, of 2 dissimilar pairs, the upper petal with a spur 12-20 mm. long, narrowed to the tip, the blade of the petal crested above; stamens 6, united into 2 groups alternate with the inner petals; style 1, slender, well-developed; stigma 2-lobed.
Capsule pear-shaped, 10-15 mm. long and 3-4 mm. thick.
PNW Herbaria: Specimen records of Corydalis scouleri in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Corydalis scouleri checklist entry.
OregonFlora: Corydalis scouleri information.
E-Flora BC: Corydalis scouleri atlas page.
CalPhotos: Corydalis scouleri photos.
USDA Plants: Corydalis scouleri information.