World's largest medicinal botanic garden in China

Located in Guangxi Zhuang autonomous region and spread over an area of 202 hectares (over 2 square kilometres), the garden has been confirmed to be containing the most varieties of medicinal plants and the largest cultivated area of medicinal plants in the world.
http://ummid.com/news/2011/December/09.12.2011/worlds_largest_botanical_garden.htm