Etymology: Erysimum: from the Greek eryomai, "to help or save," because some of the species supposedly had a medicinal value
Plants: erect, perennial, 12"-32" tall forb, very hairy; stems usually unbranched
Leaves: usually erect or pointing upward, linear to oblong, mostly toothless
Flowers: pale yellow, 4-parted, 1/2"-3/4" wide; blooms May-Aug.
Fruits: erect, long, thin, 4 -angled pod; seeds in 1 row
Habitat: dry; prairies, upland woods
Conservation Status: Introduced - naturalized

Flora of North America: Flora of North America USDA Plants Database: Federal Distribution and detailed information including photos