Conium \Co*ni"um\ (? or ?), n. [NL., fr. Gr. ? hemlock.]
1. (Bot.) A genus of biennial, poisonous, white-flowered,
umbelliferous plants, bearing ribbed fruit (``seeds'') and
decompound leaves.
Conium
n : small genus of highly toxic biennials: hemlock [syn: {genus
Conium}]