1. Perennial of southern Europe having clusters of fragrant flowers of all colours especially yellow and orange; often naturalized on old walls or cliffs; sometimes placed in genus Erysimum
   "Ancient castle walls were adorned with wild wallflowers";
   - Cheiranthus cheiri, Erysimum cheiri
    
2. Any of numerous plants of the genus Erysimum having fragrant yellow, orange or brownish flowers
   "She planted wallflowers along the garden path for their sweet scent"
    
3. Someone who is shy or without a partner at a social event or dance
   "The wallflower sat alone, watching others enjoy themselves on the dance floor"

Derived forms: wallflowers

Type of: flower, shrinking violet, shy person

Part of: Cheiranthus, Erysimum, genus Cheiranthus, genus Erysimum

Encyclopedia: Wallflower