Leguminous plant and Mung bean

Leguminous plant noun - An erect or climbing bean or pea plant of the family Leguminosae.

Mung bean and leguminous plant are semantically related. In some cases you can replace phrase "Mung bean" with "Leguminous plant", this phrases are similar.

Mung bean 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.

Leguminous plant and mung bean are semantically related. You can use "Leguminous plant" instead a noun phrase "Mung bean".