General:
Aromatic annual herb from a slender taproot; stems erect, simple, branched above, stiff-hairy, 5-30 cm tall.

Leaves:
Basal leaves lacking; stem leaves alternate, simple, entire, linear, 1-4 cm long, 1-2 mm wide, glandular, stiff-hairy.

Flowers:
Heads with ray and disk flowers, solitary at the ends of branches in an open, flat-topped inflorescence; involucres depressed-globose, 2.5-4.5 mm tall; involucral bracts linear dorsally, crescent shaped laterally, 4-8, glandular; ray flowers yellow, 4-8, 1 mm long; disk flower yellow, receptacular bracts united around the fertile disk flower.

Fruits:
Achenes compressed, 1.8-2.8 mm long, dark brown or black; disk achenes sterile; pappus lacking.

Source:  The Illustrated Flora of British Columbia

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Illustration Source:  The Illustrated Flora of British Columbia