'Cheiranthus asperus' definitions:
Definition of 'Cheiranthus asperus'
From: WordNet
noun
Biennial or short-lived perennial prairie rocket having orange-yellow flowers; western North America to Minnesota and Kansas; sometimes placed in genus Cheiranthus [syn: western wall flower, Erysimum asperum, Cheiranthus asperus, Erysimum arkansanum]