- blue cohosh, blueberry root, papooseroot, papoose root, squawroot, squaw root, Caulophyllum thalictrioides, Caulophyllum thalictroides - tall herb of eastern North America and Asia having blue berrylike fruit and a thick knotty rootstock formerly used medicinally
--1 is a kind of shrub, bush
--1 is a member of Caulophyllum, genus Caulophyllum