Page authors: Don Knoke, David Giblin
Artemisia tridentata
big sagebrush
WTU specimens
Other herbaria

Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia south to California, east to the Rocky Mountains and northern Great Plains.

Habitat: Dry plains and hills up to timberline, but not in lithosol or alkaline soil.

Flowers: July-September

Origin: Native

Conservation Status: Not of concern

Description:
General:

Erect, branching, aromatic shrub, 4-20 dm. tall, the leaves and young branches covered with fine, grey hairs.

Leaves:

Leaves persisting through the winter, narrowly wedge-shaped, 1.5-5 cm. long, 3-toothed at the apex, the upper ones narrower and mostly entire.

Flowers:

Heads numerous, sessile, in a loose, elongate panicle, 1.5-7 cm. wide; involucre 3-5 mm. high, covered with fine, grey hairs; corollas all tubular, fertile, all perfect, yellowish, mostly 3-5, occasionally more; receptacle without hairs; pappus none.

Fruits:

Achenes glabrous.

Accepted Name:
Artemisia tridentata Nutt.
Publication: Trans. Amer. Philos. Soc., n. s. 7: 398. 1841.

Synonyms & Misapplications:
(none provided)
Infraspecies:
ssp. tridentata – big sagebrush
ssp. vaseyana – big sagebrush
ssp. wyomingensis – big sagebrush
Additional Resources:

PNW Herbaria: Specimen records of Artemisia tridentata in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Artemisia tridentata checklist entry.

E-Flora BC: Artemisia tridentata atlas page.

CalPhotos: Artemisia tridentata photos.

USDA Plants: Artemisia tridentata information.

64 photographs:
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