Adzuki bean

Adzuki beans
Also called "red mung beans"
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Genus: Vigna
Species:
V. angularis
Binomial name
Vigna angularis
(Willd.) Ohwi & H. Ohashi

Vigna angularis, also known as the adzuki bean (Japanese: 小豆, Hepburn: azuki), azuki bean, aduki bean, red bean, or red mung bean, is an annual vine widely cultivated throughout East Asia for its small (approximately 5 mm or 14 in long) bean. The cultivars most familiar in East Asia have a uniform red color, but there are white, black, gray, and variously mottled varieties.

Scientists presume Vigna angularis var. nipponensis is the progenitor.