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.

synoniemen: California fern, Conium maculatum, hemlock, poison hemlock, poison parsley, winter fern.

Pools: weszka, pietrasznik plamisty, świńska wesz, szaleń plamisty, szczwół plamisty, psia pietruszka, pietrasznik