wall·flow·er / ˈwôlˌflou(-ə)r/ • n. 1. a southern European plant (Cheiranthus cheiri) of the cabbage family, with fragrant yellow, orange-red, dark red, or brown flowers, cultivated for its early spring blooming. 2. inf. a person who has no one to dance with or who feels shy, awkward, or excluded at a party.

wallflower Any of several species of perennial plants of the genera Cheiranthus and Erysimum, commonly cultivated in Europe and USA. The European wallflower, C. cheiri, has lance-shaped leaves and red, orange, yellow or purple flowers. Height: to 90cm (36in). Family Brassicaceae/Cruciferae.