Page author: David Giblin
Bolandra oregana
northern false coolwort

Distribution: Along the Columbia River Gorge and in southeastern Washington; Washington south to Oregon along the lower Columbia River Gorge, and along the Snake River and its tributaries in Oregon and Idaho.

Habitat: Moist, mossy rocks, usually near waterfalls.

Flowers: May-June

Origin: Native

Growth Duration: Perennial

Conservation Status: Threatened in Washington (WANHP)


Weakly glandular-pubescent, herbaceous perennial with numerous bulblets along the short rhizome, the usually single stem 2-4 dm. tall.


Basal and lower cauline leaves long-petiolate, reniform, 3-7 cm. broad, shallowly lobed, the lobes with irregular, pointed teeth; the upper leaves with short petioles; the stipules leaf-like.


Flowers few in an open, conspicuously bracteate, terminal panicle; calyx 14-18 mm. long, the 5 lobes linear-lanceolate, purplish, equaling the tube; the 5 petals purplish, linear, about equaling the calyx lobes; stamens 1/3 as long as the petals, the filaments reddish-purple.


Capsule 1 cm. long, the 2 carpels fused + their length.

Accepted Name:
Bolandra oregana S. Watson
Publication: Proc. Amer. Acad. Arts. 14: 292. 1879. 1879.

Synonyms & Misapplications:
Bolandra oregana S. Watson var. imnahaensis (M. Peck) M. Peck
Additional Resources:

PNW Herbaria: Specimen records of Bolandra oregana in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Bolandra oregana checklist entry.

E-Flora BC: Bolandra oregana atlas page.

CalPhotos: Bolandra oregana photos.

USDA Plants: Bolandra oregana information.

16 photographs:
Group by