General: Perennial, slightly to strongly aromatic herb from a stout rhizome; stems erect, several, 0.5-1.5 m tall.
Leaves: Lower leaves usually soon deciduous, main stem leaves linear or sometimes lanceolate, occasionally 3-parted, entire, glabrous or sometimes long-hairy; mostly 3-8 cm long, 2-10 mm wide.
Flowers: Heads disciform, numerous in an open, branched inflorescence; involucres hemispheric, 2-3 mm tall; involucral bracts oblanceolate to elliptic with broad, translucent or thin, dry, papery margins, glabrous; receptacles glabrous; female flowers 6-30; disk flowers 10-30.
The table below shows the species-specific information calculated from original data (BEC database) provided by the BC Ministry of Forests and Range. (Updated August, 2008)
Dry roadsides, meadows and open forests in the lowland, steppe and montane zones; common in BC east of the Coast-Cascade Mountains and S of 57degreeN; circumboreal, N to AK, YT and NT, E to MB and S to MO, KS, TX, NM, AZ, CA and MX, Eurasia.
