General:
Annual or biennial herb from a taproot; stems single or diffusely branched above, 10-40 cm tall, decumbent to ascending, glabrous to sparsely hairy throughout, the hairs appressed.

Leaves:
Variable, 2-7 cm long, 8-20 mm wide, oblong to oblanceolate, toothed, lobed or pinnately-cut, the segments linear to egg-shaped, entire or toothed, glabrous or short-hairy; stem leaves reduced upwards, clasping with earlike lobes basally.

Flowers:
Inflorescence of 1-5 (7) mm long, spreading to ascending or slightly recurved stalks; petals yellow, 1-2 mm long; sepals 1-2 mm long, often spreading, promptly deciduous or somewhat persistent until the siliques are well formed, glabrous.

Fruits:
Siliques, linear to oblong, 6-15 mm long, 1-1.5 mm wide, curved upward to sometimes straight, nearly round in cross section, 2-carpelled; beaks 0.3-1 mm long; seeds finely pimpled.

Notes:
Several poorly defined varieties are sometimes recognized, but are not treated here.

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

Flower Colour:
Yellow

Blooming Period:
Indeterminate

Fruit/Seed characteristics:
Colour: Brown
Present from Summer to Fall

Source:  The USDA

Synonyms and Alternate Names:
Rorippa curvisiliqua var. curvisiliqua (Hook.) Besser ex Britton
Rorippa curvisiliqua var. orientalis R. Stuckey
Rorippa curvisiliqua var. procumbens R. Stuckey