General:
Perennial herb from a taproot and stolons; forming mats or clumps up to 50 cm across; stems mostly erect, branched, yellowish stiff-hairy; 8-50 cm tall.

Leaves:
Basal leaves lacking; stem leaves opposite, lanceolate to oblong or elliptic, 7-50 mm long, 3-15 mm across, 1-nerved, sharp-pointed to rounded, somewhat hairy; stipules lacking.

Flowers:
Inflorescence of 2-10 flowers in an open cluster; petals 5, white, 7-12 mm long, deeply 2-cleft; sepals 5, elliptic to lanceolate, 6-10 mm long, hairy.

Fruits:
Capsules nearly cylindric, 10-14 mm long, 10-valved; seeds reddish-brown, 1-1.5 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