noun
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
• Syn: ↑wallflower, ↑Cheiranthus cheiri
• Hypernyms: ↑flower
• Member Holonyms: ↑Cheiranthus, ↑genus Cheiranthus
Useful english dictionary. 2012.