Index Seminum (Dorpat) 2. 1824
Phenology: Flowering Mar–Jul.
Habitat: Open grassland, sandbars, scree, alpine meadows, ledges, rocky cliffs, forests, streamsides, railroad embankment, boggy ground, gravel pits, moist grassy slopes
Elevation: 0-3400 m
Alta., B.C., Man., N.B., Nfld. and Labr., N.W.T., Ont., Que., Sask., Yukon, Alaska, Ariz., Calif., Colo., Idaho, Maine, Mich., Minn., Mont., Nev., N.H., N.Mex., Oreg., S.Dak., Utah, Wash., Wyo., e, c Asia.
M. L. Fernald (1909) reported the southwestern Asian Barbarea plantaginea de Candolle from Alaska, but it is certain that his records were based on plants of B. orthoceras, which is rather rare in New England, where it appears to be restricted to portions of northern Maine and New Hampshire.