'Archemora rigida' definitions:

Definition of 'Archemora rigida'

From: GCIDE

Cowbane \Cow"bane`\ (kou"b[=a]n`), n. (Bot.) A poisonous umbelliferous plant; in England, the {Cicuta virosa}; in the United States, the Cicuta maculata and the Archemora rigida. See Water hemlock. [1913 Webster]