Artemisia tridentata Nutt. 
Family: Asteraceae
big sagebrush,  more
Artemisia tridentata image
L. R. Landrum  
 
Plant: Shrub < 30 dm, from thick trunk, gray-hairy; stems generally glabrous Leaves: 1-3(6) cm, generally wedge-shaped, generally 3(0-5)-toothed at tip, often in axillary clusters, persistent, gray-green, densely hairy Inflorescence: primary inflorescence a head, each resembling a flower; heads 2-2.5 mm diam, generally erect; phyllaries oblanceolate to widely obovate, densely tomentose, margins ± transparent Flowers: Pistillate flowers 0; Disk flowers 4-6; corollas < 2 mm, pale yellow; anther tips acute to awl-shaped; style branches flat, fringed or blunt (sometimes simple, tack-shaped in staminate flowers) Fruit: achenes, 1-2 mm, glandular or hairy Misc: Dry soils, valleys, slopes; 300-3000+ m.
Artemisia tridentata image
L. R. Landrum  
Artemisia tridentata image
T.R. Van Devender  
Artemisia tridentata image
Arizona State University Herbarium  
Artemisia tridentata dot map
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