Etymology: Rorippa: an Anglo-Saxon word rorippen whose meaning has been lost
Plants: erect, annual/biennial, 18"-40" tall forb, larger plants with many branches; taprooted
Leaves: lower leaves pinnately-divided; middle leaves with distinct wings and lobes toward the base, appearing stalkless
Flowers: yellow, 4-parted, 1/8"-3/8" long, petals about the same length as the sepals; inflorescence a loose cluster (raceme) of stalked flowers; blooms May-Oct.
Fruits: longish, plump pods about 2 times as long as its stalk
Habitat: generally in wetlands
Conservation Status: Native

Flora of North America: Flora of North America Floristic Rating: Coefficient of Conservatism = 3, Wetland Indicator = OBL USDA Plants Database: Federal Distribution and detailed information including photos Dan Tenaglia's The Missouri Flora: Fabulous photographs; detailed descriptions; color and leave arrangement key. David G. Smith's "Delaware Wilflowers": Beautiful photographs; descriptions Illinois Wildflowers: Wonderful photographs; detailed descriptions; color and leaf arrangement key