General:
Perennial herb from a taproot and stoloniferous prostrate stems; forming mats 4-40 cm wide; stems prostrate, glandular-hairy, slender, less than 1 mm in diameter, flowering stems 3-25 cm long.

Leaves:
Basal leaves lacking; stem leaves opposite, narrowly oblong or oblong-lanceolate to spoon-shaped, 5-35 mm long, 3-8 mm wide, sharp-pointed to rounded, hairy; stipules lacking.

Flowers:
Inflorescence of usually 3-6 flowers in an open cluster; petals 5, white, 6-12 mm long, deeply 2-cleft; sepals 5, elliptic, 3-7 mm long, often purplish.

Fruits:
Capsules cylindric, 8-12 mm long, 10-valved; seeds golden to reddish-brown, 0.8-1.2 mm long.

Notes:
Sometimes confused with C. fischerianum where their ranges overlap. Two subspecies occur in BC.

1. Stalks with very fine, short, glandular hairs; plants of S BC..................... ssp. earlei (Rydb.) Hult.

1. Stalks with long glandular hairs, plants of N BC..................... ssp. beeringianum

Source:  The Illustrated Flora of British Columbia

Synonyms and Alternate Names:
Cerastium pilosum Greene, non Ledeb.
Cerastium pulchellum Rydb.
Cerastium scammaniae Polunin