Blue Cohosh (Caulophyllum thalictroides) Linnaeus, 1753

 

Synonyms: Leontice thalictroides

 

 

Caulophyllum thalictroides occurs in eastern North America east of the Mississippi River, e.g., from southern Manitoba to Nova Scotia, and south to Arkansas, northern Georgia and South Carolina. It grows in rich soils in deciduous forests; 0-1,200 m. Forb, up to 90 cm in height. Leaves compound, bluish-green, with trifoliate leaflets. Flowers are radially symmetrical with 6 yellowish-green or purple sepals and 6 yellow stamens, in clusters of 5-20. Fruit is berry-like, purple-blue; poisonous.

 

D65859 Blue Cohosh (Caulophyllum thalictroides) Shenandoah National Park Virginia, USA Copyright © Michael Patrikeev All Rights Reserved

 

		D49272 Blue Cohosh (Caulophyllum thalictroides) Bruce Peninsula National Park Ontario, Canada Copyright © Michael Patrikeev All Rights Reserved
		D65856 Blue Cohosh (Caulophyllum thalictroides) Shenandoah National Park Virginia, USA Copyright © Michael Patrikeev All Rights Reserved
		D49273 Blue Cohosh (Caulophyllum thalictroides) Bruce Peninsula National Park Ontario, Canada Copyright © Michael Patrikeev All Rights Reserved

 

		D49226 Blue Cohosh (Caulophyllum thalictroides), fruit Bruce Peninsula National Park Ontario, Canada Copyright © Michael Patrikeev All Rights Reserved
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