Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun california_fern
1 sense of california fern
Sense 1
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)
=> poisonous plant -- (a plant that when touched or ingested in sufficient quantity can be harmful or fatal to an organism)