Pizhou dried moss is a geographical indication product of Pizhou City, Jiangsu Province. Dry moss is actually lettuce, which was introduced from Bodi, Anhui Province in the Ming Dynasty. Due to the unique geographical conditions, it was only planted in Pingnan. 1 dried moss was once presented to the imperial court as a tribute in history, also known as a tribute. Historically, it has been one of the commodities exported to China and Hong Kong.