General:
Annual herb from a slender taproot; stems erect or ascending with several ascending branches near the base, 10-25 cm tall, the shoots grey-hairy with starlike hairs.

Leaves:
Basal leaves lacking; stem leaves narrowly oblanceolate, entire, 5-25 mm long, grey with starlike down.

Flowers:
Inflorescene elongate; flower stalks spreading, 2-5 mm long; flowers less than 3 mm in diameter; petals light yellow, very narrow, 2-3 mm long; sepals about 2 mm long, soft-hairy and with starlike hairs, deciduous shortly after fruiting.

Fruits:
Silicles, 3-4 mm long, round, shallowly notched, glabrous, strongly flattened near the edges and bulging over seeds, 2 seeds in each chamber; style about 1 mm long.

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