Scientific name for a kind of bean potato plant, alias sweet potato, cool potato, sand kudzu, foreign groundnut, etc., Sichuan is also known as ground pear child. Shape and size and groundnut about the same, the skin is yellowish white, meat is very white, the texture of the meat looks a little like groundnut, but eat than groundnut sweet, crispy and delicious more water, for the thirst quencher, but also can be eaten raw as a fruit.

Cool, sweet flavor. The stomach meridian. It can promote the production of body fluid, quench thirst, quench the poison of alcohol, and lower blood pressure.

Contraindication: stomach cold patients do not eat for proper; cold dysmenorrhea women in menstruation do not eat cold beans and potatoes; diabetics can not eat more.

I don't know if you are talking about it? See the picture: