The mung bean (Vigna radiata), alternatively known as the green gram, maash (Persian: ماش), moong (from Sanskrit: मुद्ग, romanized: mudga), monggo, or munggo (Philippines) is a plant species in the legume family. The mung bean is mainly cultivated in East Asia, Southeast Asia and the Indian subcontinent. It is used as an ingredient in both savoury and sweet dishes.
Mung bean starch, which is extracted from ground mung beans, is used to make transparent cellophane noodles (also known as bean thread noodles, bean threads, glass noodles, fensi (粉絲), tung hoon (冬粉), miến, bún tàu, or bún tào). Cellophane noodles become soft and slippery when they are soaked in hot water. A variation of cellophane noodles, called mung bean sheets or green bean sheets, are also available.
In Korea, a jelly called nokdumuk (Korean: 녹두묵; also called cheongpomuk; 청포묵) is made from mung bean starch; a similar jelly, colored yellow with the addition of gardenia coloring, is called hwangpomuk (황포묵).
In northern China, mung bean jelly is called liangfen (Chinese: 涼粉; lit. 'chilled bean jelly'), which is a very popular food during summer. The Hokkiens add sugar to mung bean jelly to make it a dessert called Lio̍k-tāu hún-kóe (Chinese: 綠豆粉粿; lit. 'mung bean flour cake').