Vigna mungo, known as urad, urad dal, udad dal, urd bean, urd, urid, black matpe bean, black gram, black lentil [not to be confused with the much smaller true black lentil (Lens culinaris)], maas (in Nepali), đậu đen (Vietnamese

Vietnamese language

Vietnamese is the national and official language of Vietnam. It is the mother tongue of 86% of Vietnam's population, and of about three million overseas Vietnamese. It is also spoken as a second language by many ethnic minorities of Vietnam...

, literally: black bean) or white lentil, is a bean

Bean

Bean is a common name for large plant seeds of several genera of the family Fabaceae used for human food or animal feed....

 grown in southern Asia

South Asia

South Asia, also known as Southern Asia, is the southern region of the Asian continent, which comprises the sub-Himalayan countries and, for some authorities , also includes the adjoining countries to the west and the east...

. It is largely used to make dal

Dal

Dal is a preparation of pulses which have been stripped of their outer hulls and split. It also refers to the thick stew prepared from these, an important part of Indian, Nepali, Pakistani, Sri Lankan, and Bangladeshi cuisine...

 from the whole or split, dehusked seeds. It, along with the mung bean

Mung bean

The mung bean is the seed of Vigna radiata. It is native to the Indian subcontinent.-Description:They are small, ovoid in shape, and green in color...

, was placed in Phaseolus, but has since been transferred to Vigna.