E-Flora BC: Electronic Atlas of the Flora of British Columbia

General:
Perennial, mildly aromatic, evergreen shrub; stems solitary or branched from the base with shredding, grey or light brown bark when older or with a dense, grooved, white-woolly hairiness on the twigs, 20-80 cm tall.

Leaves:
Principal leaves short-stalked, grey-hairy, deeply divided into 3 linear or narrowly lanceolate lobes which may sometimes be 3-cleft or some of the leaves linear and entire, 0.5-3.0 cm long.

Flowers:
Heads discoid, numerous in a narrowly to broadly branched inflorescence; involucres bell-shaped, 3-4 mm tall; involucral bracts grey-hairy, the inner ones oblong, the outer broadly egg-shaped, sometimes with a narrow herbaceous tip; receptacles glabrous; female flowers lacking; disk flowers 4-7 (rarely more).

Fruits:
Achenes resinous-granular.