Mung and Mash bean

Mung noun - Erect bushy annual widely cultivated in warm regions of India and Indonesia and United States for forage and especially its edible seeds; chief source of bean sprouts used in Chinese cookery; sometimes placed in genus Phaseolus.

Mash bean is a synonym for mung. In some cases you can use "Mash bean" instead a noun "Mung".

Mung is a synonym for mash bean. You can use "Mung" instead a noun phrase "Mash bean".