1. Tall herb of eastern North America and Asia having blue berrylike fruit and a thick knotty rootstock formerly used medicinally
   "Native Americans used blueberry root for medicinal purposes";
   - blue cohosh, papooseroot, papoose root, squawroot, squaw root, Caulophyllum thalictrioides, Caulophyllum thalictroides

Derived forms: blueberry roots

Type of: bush, shrub

Part of: Caulophyllum, genus Caulophyllum