blue cohosh

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blue cohosh

n.
A perennial herb (Caulophyllum thalictroides) of eastern North America, having one or two compound leaves, small yellow-green or purplish flowers, and blue berrylike seeds.
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Noun1.blue cohosh - tall herb of eastern North America and Asia having blue berrylike fruit and a thick knotty rootstock formerly used medicinallyblue cohosh - tall herb of eastern North America and Asia having blue berrylike fruit and a thick knotty rootstock formerly used medicinally
bush, shrub - a low woody perennial plant usually having several major stems