Rorippa palustris subsp. palustris (L.) Besser
Family: Brassicaceae
Fernald's yellow-cress, marsh-cress
[Rorippa hispida var. glabrata (Desv.) Britton,  more...]
Rorippa palustris subsp. palustris image
University of Wisconsin-Stevens Point, Robert W. Freckmann Herbarium (UWSP)  
Etymology: Rorippa: an Anglo-Saxon word rorippen whose meaning has been lost
Plants: annual/biennial, 16"-40" tall forb
Flowers: yellow, 4-parted
Habitat: wet
Conservation Status: Native