It is found in Hubei, Sichuan, Shaanxi, Hunan, Guangxi, and Yunnan provinces in China, growing under forests, along roadsides, and on grassy slopes at elevations of 700-2000 meters.
The flowers are purple or purplish-red, with a corolla tube extending slightly beyond the calyx, lips 3-lobed with the middle lobe inverted-heart shaped and side lobes ovate-triangular.
It is used in traditional medicine for treating conditions such as hemorrhage, bleeding disorders, wounds, and postpartum chill. Leaves are also applied externally for treating sores and toxins.
紫色