its rhizomes, Cicuta vilosa is a perennial of 0.6-1m in
height, occurring in wetlands in mountainous regions. Stems are
hollow, and leaves are of a bi- to triternate compound leaf, with
leaflets being lanceolate, 3-8cm in length, and serrations on
margins. Branch tips emerge compound umbels which set many white
flowers. Bloom time: June-August.