1. (noun) tall herb of eastern North America and Asia having blue berrylike fruit and a thick knotty rootstock formerly used medicinally

• blue cohosh
• blueberry root
• caulophyllum thalictrioides
• caulophyllum thalictroides
• papoose root
• papooseroot
• squaw root

1. (noun) tall herb of eastern North America and Asia having blue berrylike fruit and a thick knotty rootstock formerly used medicinally

• bush
• shrub

1. (noun) tall herb of eastern North America and Asia having blue berrylike fruit and a thick knotty rootstock formerly used medicinally

• caulophyllum
• genus caulophyllum