The Chinese meadow rue (Thalictrum dipterocarpum) belongs to Ranunculaceae (the Buttercup family). It is a perennial herb that is distributed in central and southern China, from Yunnan to Sichuan and Tibet Autonomous Region. The stems are purplish-brown and can reach 1.2-1.5 m in height. The leaves are triternate to tetraternate compound, and the leaflets are turquoise. From July to August, panicles are borne on the shoot apex and bloom lilac flowers with a diameter of about 15 mm. In Chinese name, it is called "偏翅唐松草".