Wallflower

A perennial, cruciferous plant (Cheiranthus Cheiri), with sweet-scented flowers varying in color from yellow to orange and deep red. In Europe it very common on old walls.

A lady at a ball, who, either from choice, or because not asked to dance, remains a spectator.

perennial of southern Europe having clusters of fragrant flowers of all colors especially yellow and orange; often naturalized on old walls or cliffs; sometimes placed in genus Erysimum

any of numerous plants of the genus Erysimum having fragrant yellow or orange or brownish flowers