Baishan medicine has been planted in Shenze County, Hebei Province for more than 300 years. In the process of planting, local farmers have been constantly screening, rejuvenating and purifying, and finally cultivated "Xiaobaizui" white yam, which has become the leader among Baishan medicinal varieties.

The history of white yam with small white mouth

The cultivation of white yam with small white mouth has a long history. It has been recorded since the Han Dynasty and flourished in the Tang Dynasty. During the Han and Tang Dynasties, the famous local family, Cui Shi family, always liked to eat white yam with small white mouth. The Cui Shi family produced more than 20 prime ministers, including hundreds of prominent figures such as generals. White yam with small white mouth was praised as "Prime Minister Yam".

Cui Yingying in the Romance of the West Chamber is also fond of it because of beauty beauty, with fine features, red lips and white teeth, a cherry mouth and a passion for yam. Old farmers and hoes planted locally called Miss Cui's favorite variety "White Yam with Small White Mouth", hence the name.