Cerastium viscosum is an annual or winter annual herb, 5-30 cm tall, sticky-hairy.
Leaves opposite, stalkless, blade 1-2.5 long, 0.5-1.5 cm wide, hairy on both sides, egg-shaped, lower leaves spatula-shaped, tips rounded.
Flowers white, petals deeply notched at tip, slightly shorter than to about as long as sepals, sepals to 0.5 cm, narrow, tip pointed, margins rather membranous, hairs pointing forward and extending well beyond tip, stamens 10, flower stalks shorter than sepals, bracts below flowers leaf-like, hairy; inflorescence at first dense, head-like, becoming more open, branched, but flowers in dense clusters at ends of stems; blooming April -July.
Fruit dry, a capsule to 0.8 cm long, 0.2 cm wide. Opening at top.
Wetland status: UPL.
Frequency in NYC: Infrequent.
Habitat: Weed of gardens, lawns, roadsides.