Page author: David Giblin
Triteleia grandiflora
blue-lily, blue umber lily, large-flowered tritelia

Distribution: Occurring chiefly east of the Cascades crest in Washington, but also occurring in the north Puget Sound area; British Columbia to California, east to Montana, Idaho, Wyoming and Utah.

Habitat: Prairies, grasslands, balds and forest openings, often where seasonally dry, from the coast to middle elevations in the mountains.

Flowers: April-June

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern


Perennial herb from a bulb, leaves basal, inflorescence a scape to 75 cm tall.


Usually two or three from bulb, basal, narrow, 20-70 cm long × 4-10 mm wide.


Sepals 3 and petals 3, nearly identical in appearance (tepals), 17-35 mm, light bluish-purple to white, fused below and forming a tube. Stamens 6, attached alternately at 2 levels. Ovary superior.


Capsule, dehiscing lengthwise, seeds many, black.

Accepted Name:
Triteleia grandiflora Lindl.
Publication: Edwards’s Bot. Reg. 15: under plate 1293. 1830.

Synonyms & Misapplications:
(none provided)
var. grandiflora – blue-lily, Douglas' brodiaea, blue umber lily, large-flowered tritelia    Occurring east of the Cascades crest in Washington; southern British Columbia to California, east to Idaho, Montana, Wyoming, and Utah.
var. howellii – Howell's large-flowered triteleia, Howell's triteleia    Occurring mostly west of the Cascades crest and east in the Columbia River Gorge in Washington; Vancouver Island to northern California.
Additional Resources:

PNW Herbaria: Specimen records of Triteleia grandiflora in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Triteleia grandiflora checklist entry.

E-Flora BC: Triteleia grandiflora atlas page.

CalPhotos: Triteleia grandiflora photos.

USDA Plants: Triteleia grandiflora information.

110 photographs:
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