cow parsley n 1: coarse erect biennial Old World herb introduced as a weed in eastern North America [syn: {cow parsley}, {wild chervil}, {Anthriscus sylvestris}]
Cow parsley \Cow" pars`ley\ (kou` p?rs`l?). (Bot.) An umbelliferous plant of the genus {Ch[ae]rophyllum} ({Ch[ae]rophyllum temulum} and {Ch[ae]rophyllum sylvestre}). [1913 Webster]