Yiyuan Chinese herbal medicine market. According to Baidu map, the address of Zhengzhou Chinese herbal medicine wholesale market is located in Yiyuan Chinese herbal medicine market, Zhengzhou City, Henan Province. Zhengzhou, referred to as "Zheng" for short, was called "in heaven and earth" in history, called Shangdu in ancient times, and now called Greentown. Henan Province governs prefecture-level cities, provincial capitals and megacities to promote the rise of central China. The 13th Five-Year Plan explicitly supports the construction of a national central city.