Distribution: Occurring east of the Cascades crest in Washington; Washington to Oregon, east to Idaho and Montana.
Habitat: Dry, rocky places from the plains and foothills to moderate elevations in the mountains.
Growth Duration: Perennial
Conservation Status: Not of concern
Pungently aromatic shrub up to 4 dm. tall; young twigs glabrate and yellowish or canescent.
Leaves deciduous, canescent, 1-4 cm. long, narrow, deeply divided into 3-5 narrow segments.
Inflorescence narrowly spikelike, the heads or small clusters of heads sessile in the axils, usually surpassed by their subtending leaves; involucre 4-5 mm. high, its bracts dry, imbricate, the inner scarious; heads discoid, flowers all perfect.