1. Any of several North American plants of the genus Erysimum having large yellow flowers
   "The prairie rocket thrived in the dry, sunny conditions"
    
2. Any of several western American plants of the genus Cheiranthus having large yellow flowers
   "The prairie rocket's bright blooms dotted the landscape"

Derived forms: prairie rockets

Type of: flower

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

Encyclopedia: Prairie rocket