1. An Old World spurge introduced as a weed in the eastern United States
   "devil's milk appeared in disturbed soil";
   - petty spurge, Euphorbia peplus
    
2. Not unattractive European weed whose flowers turn toward the sun
   "devil's milk can often be found growing in garden paths and waste ground";
   - sun spurge, wartweed, wartwort, Euphorbia helioscopia

Type of: spurge

Part of: Euphorbia, genus Euphorbia