Artemisia tridentata
big sagebrush, spiked sagebrush
Blooms: July-September
Habit: shrub
Duration: perennial
Origin: Native
Conservation Status: Abundant; of no concern.
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.
Species 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.
Subspecies & Varieties:
Artemisia tridentata ssp. wyomingensis
Accepted Name:
Artemisia tridentata Nutt.
Synonyms:
(none)
Treated in Flora of the PNW as:
Artemisia tridentata
Additional Resources:
PNW Herbaria Specimens: View list of
Artemisia tridentata specimens in the Consortium of Pacific Northwest Herbaria database.
WTU Herbarium Specimens: View list of
Artemisia tridentata specimens in the WTU Herbarium database.
Washington Flora Checklist:
Artemisia tridentata treatment.
E-Flora BC:
Artemisia tridentata atlas page.
CalPhotos:
Artemisia tridentata images.
USDA Plants Database:
Artemisia tridentata.
Additional photographs of Artemisia tridentata:
(click on a thumbnail to view larger photo)

Clayton J. Antieau, 1989

Richard Old

Richard Old

Richard Old

Richard Old

Ben Legler, 2005

Bud Kovalchik

Bud Kovalchik

Bud Kovalchik

Bud Kovalchik

Bud Kovalchik

Bud Kovalchik

Bud Kovalchik

Bud Kovalchik

Bud Kovalchik

G. D. Carr, 2007

G. D. Carr, 2007

G. D. Carr, 2007

G. D. Carr, 2007

G. D. Carr, 2007

G. D. Carr, 2007

Ron Bockelman, 2011

Ron Bockelman, 2011

Ron Bockelman, 2011

Ron Bockelman, 2011

Ron Bockelman, 2011

Ron Bockelman, 2011

Ron Bockelman, 2011

Ron Bockelman, 2011