General:
Annual herb from a slender taproot; stems prostrate to erect, much branched, glabrous, 5-15 cm tall.

Leaves:
Basal leaves lacking; stem leaves opposite, egg-shaped, 8-13 mm long, narrowed at the base, blunt, the lower pairs so close as to appear like whorls of 4; stipules small, triangular and long-pointed, papery.

Flowers:
Inflorescence of numerous flowers in a much-branched cluster; petals 5, white, narrowly oblong, 1-1.5 mm long, soon falling; sepals 5, 1-1.5 mm long, with a papery margin.

Fruits:
Capsules egg-shaped, to 2 mm long; seeds brownish, 0.4-0.5 mm long, granular.

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

Synonyms and Alternate Names:
Polycarpon tetraphyllum (L.) L.