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Definition of Siberian wall flower
1. Noun. Showy erect biennial or short-lived perennial cultivated for its terminal racemes of orange-yellow flowers; sometimes placed in genus Cheiranthus.
Exact synonyms: Cheiranthus Allionii, Erysimum Allionii
Group relationships: Erysimum, Genus Erysimum
Generic synonyms: Wallflower
Group relationships: Erysimum, Genus Erysimum
Generic synonyms: Wallflower