E-Flora BC: Electronic Atlas of the Flora of British Columbia

General:
Annual herb from a taproot; stems slender, often branched, hairless or minutely hairy in part, 5-20 cm tall.

Leaves:
Opposite, unstalked, palmately cleft into 3 to 7 soft, thread-like segments 5-15 mm long, or the uppermost leaves entire, the segments fringed with bristly hairs; leaves of the inflorescence longer than those below and more densely fringed.

Fruits:
Capsules, 3-chambered; seeds 1 per chamber, swelling and becoming sticky when moistened.