#313 Blue Cohosh (Caulophyllum thalictroides)

12 January 2021

A species of Caulophyllum (family Berberidaceae), also called squaw root or papoose root, is a flowering plant in the Berberidaceae (barberry) family. It is a medium-tall perennial with blue berry-like fruits and bluish-green foliage.

From the single stalk rising from the ground, there is a single, large, three-branched leaf plus a fruiting stalk. The bluish-green leaflets are tulip-shaped, entire at the base, but serrate at the tip. Its species name, thalictroides, comes from the similarity between the large highly divided, multiple-compound leaves of meadow-rue (Thalictrum) and those of blue cohosh.

It is found in hardwood forest of the eastern United States, and favors moist coves and hillsides, generally in shady locations, in rich soil. It grows in eastern North America

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