Caulophyllum giganteum, the northern blue cohosh, is a species of flowering plant in the barberry family. It is native primarily to northeastern North America, where it is found in rich forests.[1]

Caulophyllum giganteum
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Ranunculales
Family:	Berberidaceae
Genus:	Caulophyllum
Species:	C. giganteum
Binomial name
Caulophyllum giganteum (Farwell) Loconte & Blackwel

Caulophyllum giganteum produces around four to eighteen purple flowers in early spring. It blooms around 10–15 days earlier than its relative, Caulophyllum thalictroides. C. thalictroides also differs by having more abundant flowers that are yellow or green.[2]

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