Caulophyllum thalictroides, the blue cohosh, a species of Caulophyllum (family Berberidaceae) is a flowering plant in the Berberidaceae (barberry) family. It is a medium-tall perennial with blue berry-like fruits and bluish-green foliage.
*Caulophyllum thalictroides*, also called blue cohosh, belongs to the Berberidaceae family, which includes barberries. It's a perennial plant with blue berries and bluish-green foliage.