Page authors: Don Knoke, David Giblin
Dichelostemma congestum
ookow, northern saitas

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

Habitat: Grassy meadows, rocky prairies and sagebrush slopes.

Flowers: May-June

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bumblebees, bees, flies, beetles


Scapose perennial from a scaly, deep-seated corm.


Leaves 2-3, flattened but keeled on the lower side, 3-10 mm. broad and up to 6 dm. long, not withering by flowering; scape 4-7 dm. tall.


Flowers numerous in a sub-capitate raceme, the pedicels 1-2 mm. long on the marginal flowers, up to 6 mm. long in the center of the cluster; involucre bluish-purple, the 3-5 bracts 1-2 cm. long; tepals 6, lavender to bluish-purple, 2 cm. long, united about their length, oblong, spreading slightly; fertile stamens 3, filaments broad, adnate almost to the anthers; staminodia 3, adnate to the anther tips, the free tip deeply bifid.


Capsule sessile.

Accepted Name:
Dichelostemma congestum (Sm.) Kunth
Publication: Enum. Pl. 4: 470. 1843.

Synonyms & Misapplications:
Brodiaea congesta Sm. [HC]
Hookera congesta (Sm.) Jeps.
Additional Resources:

PNW Herbaria: Specimen records of Dichelostemma congestum in the Consortium of Pacific Northwest Herbaria database

WA Flora Checklist: Dichelostemma congestum checklist entry

OregonFlora: Dichelostemma congestum information

E-Flora BC: Dichelostemma congestum atlas page

CalPhotos: Dichelostemma congestum photos

45 photographs:
Group by