General: Perennial or sometimes annual herb from a fibrous root; stems erect, much branched above, glabrous, 10-75 cm tall.
Leaves: Stem leaves lanceolate to elliptic or rounded, unstalked, obtuse to abruptly sharp-pointed, 3-5 nerved, 1-3 cm long, 0.5-1.5 cm wide, partly clasping at the base, glabrous.
Flowers: Inflorescence 20-100 flowered, spreading; petals orange-yellow, 1-2 mm long; sepals linear-oblong, abruptly sharp-pointed, 2-3 mm long; stamens less than 20; styles 3.
Fruits: Membranous capsules, 2.5-4.0 mm long; seeds yellowish, 0.5 mm long, longitudinally grooved and finely transversely corrugate.
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.
Wet to moist river banks and disturbed areas in the lowland zone; rare in SW BC, known only from the lower Fraser Valley; introduced from E North America.
