What are the most distinctive Chinese herbs from all over China?

You are asking about authentic herbs, there are just too many of these, go online and search for yourself, there are many, many. Here I'll give you a few. Inner Mongolia's wind, Jilin ginseng, Liaoning fine, Henan's yam, floating wheat, hyssop, chrysanthemum, Huai Di Huang, Anhui's Bo white peony, Bo chrysanthemum, Xuan papaya, Chu chrysanthemum, danpi. Zhejiang's Tai Wu Yao, Hang Bai Shao, Hang Chrysanthemum, Guangdong's Patchouli, Yunnan's Wenshan Panax Ginseng, Poria. Guizhou's Tianma, Cortex Eucommiae, Sichuan's Huanglian, Rhizoma Ligustici, Rhubarb, Cao Wu, Ningxia's Lycium barbarum, Shaanxi's Curcuma longa, Gansu's Liao Yang, Cistanchis, Jiangsu's Mentha piperita, Shandong's Agaricus blazei, Fujian's Zedoary, Lotus Seed, and so on and so forth.