Siberian wall flower Erysimum allionii Cheiranthus allionii
siberian_wall_flower%1:20:00:: erysimum_allionii%1:20:00:: cheiranthus_allionii%1:20:00::
showy erect biennial or short-lived perennial cultivated for its terminal racemes of orange-yellow flowers; sometimes placed in genus Cheiranthus