Originated in China's Yangtze River basin, distributed in the middle and lower reaches of the Yangtze River and parts of southwest China. Related records first appeared in the Song Dynasty and were called "Wulitou Grass" and "Dragon Claw Flower". At present, it is widely distributed in East Asia, Vietnam, Malaysia and other countries.
Attractions: Dali, Lijiang, Taroko, Mazu and other places in Taiwan Province Province.