Distribution: Occurring chiefly west of the Cascades crest in Washington; widely distributed throughout much of North America.
Habitat: Moist woods, lake, pond, and stream edges, and other wetland areas at low elevations.
Origin: Introduced; not native west of the Rocky Mountains
Conservation Status: Not of concern
Glabrous, succulent annual, the stems freely branched, 2-6 dm. tall.
Leaves alternate, occasionally opposite towards the base of plant, the petioles 2-4 cm. long, the blades elliptic-ovate, 3-12 cm. long, the rounded, serrate teeth tipped with a sharp point.
Flowers in twos, 20-25 mm. long, yellow, spotted or mottled with orange, sometimes so heavily mottled that the flower appears orange; at the orifice, narrowed gradually to the strongly recurved, 6-10 mm. spur; lateral sepals smaller; petals 5, the upper one notched at the tip, the lateral ones much smaller, in unequal pairs.