毒芹(原变种) du qin (yuan bian zhong)

Cicuta virosa f. longiinvolucellata Y. C. Chu.

Ultimate segments of leaves linear-lanceolate or narrowly lanceolate. Seed face slightly concave.

Forest margins, marshy areas, bogs, streamsides, often emergent in shallow water; 400–3300 m. Gansu, Hebei, Heilongjiang, Jilin, Liaoning, Nei Mongol, Shaanxi, Sichuan, Xinjiang, Yunnan [Japan, Kashmir, Korea, Mongolia, Russia; Europe].

All parts are highly toxic, especially the rootstock; nevertheless, the plant has reputed medicinal value.