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Noun: Cheiranthus asperus
  1. Biennial or short-lived perennial prairie rocket having orange-yellow flowers; western North America to Minnesota and Kansas; sometimes placed in genus Cheiranthus
    "Cheiranthus asperus brightens prairie landscapes";
    - western wall flower, Erysimum asperum, Erysimum arkansanum

Type of: flower

Part of: Erysimum, genus Erysimum