General:
Annual herb from a taproot; stems slender, erect, simple or branched at the base, minutely hairy, 5-15 cm tall.

Leaves:
Opposite, unstalked, palmately cleft into 3 to 7 segments, 3-20 mm long, the segments linear to narrowly oblanceolate, fringed with bristly hairs, leaves of the inflorescence longer than those below and more densely fringed.

Flowers:
Inflorescence a compact, head-like, terminal cluster of several fragrant, nearly unstalked flowers; generally 1 flower open at a time; corollas pink-purple or white with a yellow eye, 12-30 mm long, the very slender tube abruptly spreading to five rounded or squared-off, 2- to 4-mm long lobes; calyces 5-10 mm long, the 5 teeth needle-like.

Fruits:
Capsules, 3-chambered; seeds several per chamber.

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:
Linanthus bicolor (Nutt.) Greene
Linanthus bicolor subsp. minimus H. Mason
Linanthus bicolor var. minimus (H. Mason) Cronquist
Linanthus minimus (H. Mason) C. Goodwillie