1. (noun)
hemlock, poison hemlock, poison parsley, California fern, Nebraska fern, winter fern, Conium maculatum
- large branching biennial herb native to Eurasia and Africa and adventive in North America having large fernlike leaves and white flowers; usually found in damp habitats; all parts extremely poisonous Synonyms: poisonhemlock, hemlocktree, winterfern, hemlock, poisonparsley
Synonyms of 'california fern':
