Produced in Jiangxi (Wuning, Xiushui, Yushan, Shangyou, Jinggangshan, Yongfeng, Tonggu and Fengxin), Hubei (Yichang, Jianshi, Changyang, Enshi, Xuanen, Hefeng, Lichuan and Dagongshan), and Hunan (Dayong, Sangzhi, Qianyang, Ningyuan, Xinning, Yizhang and Xuefeng Mountain). Guanxian, Ya 'an, Lushan, Tianquan, Huidong, Mianning, Zhaojue, Ebian, Mabian, Jinyang, Puge, Hongya, Pingshan, Emei, Rongchang, Dazu, Yongchuan, Bishan, Jiangjin, Qianjiang, Fuling, Shizhu, Nanchuan, Chengkou, Wushan, Linshui, Changning and Bishan. Wenshan, Xichou, Malipo, Maguan, Guangnan, Mengzi, Yuanyang, Pingbian, Xinping, Yuanjiang, Jingdong, Simao, Xishuangbanna, Binchuan, Tengchong, Fengqing, Zhenkang and Longling) and southeast Tibet (Chayu); Born in hills at an altitude of (250-) 450-2500m, in mountain evergreen broad-leaved forests, miscellaneous forests, sparse forests or bushes, beside streams and roadsides. The type specimen was collected from Wushan, Sichuan (A. Henry 57 16).