• An umbelliferous plant of the genus Chaerophyllum (C. temulum and C. sylvestre).
Cow' pars`ley (kou` p?rs`l?). (Botany) An umbelliferous plant of the genus Chærophyllum ( C. temulum and C. sylvestre ). 
[n] - coarse erect biennial Old World herb introduced as a weed in eastern North America
wild chervil noun coarse erect biennial Old World herb introduced as a weed in eastern North America
Tall perennial plant belonging to the carrot family, found in Europe, northern Asia, and North Africa. It grows up to 1 m/3 ft tall and has pinnate leaves (leaflets growing either side of a stem), hollow furrowed stems, and heads of delicate white flowers. (Anthriscus sylvestris, family Umbelliferae.)