Black beans (two-part nomenclature: Vigna cylindrica Skeels or Vigna unguiculata Walp. subsp. cylindrica (L.) Verdc.), belonging to the subfamily Faboideae, whose names in Oriental medicine are oolong, black pea, frankincense.
Characteristics
Black bean is an annual plant of the legume family, the whole body is hairless. Compound leaves consist of 3 alternate leaflets, the middle leaflet is larger and longer than the leaflets on both sides. Light purple flowers. The fruit is long, round, containing 7 to 10 black seeds.
In Vietnam, in addition to the common plant varieties with black color, also known as black striped beans, there are many varieties that produce other colored seeds such as red beans, white beans, peas, crab-eyed peas, Lang Son white beans, and white beans white stripe red navel, white stripe black navel.
Cuisine
In Vietnam, black beans are used to prepare many common and specialty dishes
For the Chinese, the processing of black beans for cuisine is richer. They have very special dishes like:
Traditional medicine
According to traditional medicine, black beans are mild in taste, sweet in taste, and have the effect of eliminating detoxification, kidney tonic, blood tonic, curing qi, and nourishing the body.