Caulophyllum thalictroides (Linnaeus) Michaux. Common Blue Cohosh, Green Vivian. Phen: Apr-May; Jul-Aug. Hab: Rich forests. Dist: NS, QC, ON, and MB, south to GA, AL, AR, and OK.
Origin/Endemic status: Native
Synonymy: = Ar, FNA3, GrPl, Il, K1, K3, K4, Mi, NE, NY, Tat, Tn, Va, W, Haines (2003c), Loconte & Blackwell (1981), Loconte & Blackwell (1984), Loconte & Blackwell (1985), Stearn (2002); = Caulophyllum thalictroides (L.) Michx. var. thalictroides – C; < Caulophyllum thalictroides (L.) Michx. – F, G, Pa, RAB, S, S13
Heliophily: 1
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