Black mung beans: black mung bean seeds contain essential 8 amino acids, the content of 0.24% -2.00%, mung beans in the fat content of less than 1%, but also contains a wealth of vitamins, minerals and other nutrients, black mung beans contain a variety of trace elements, a variety of amino acids, iodine, selenium, branched-chain starch, soluble pigments and so on, for the common crop several times. Characteristics of black mung bean: this variety is erect, about 60cm high, 2.5-3 main stem branches, 20-25 pods in a single plant, pod length 9㎝, 10-13 grains in a single pod, 100 grains weight 5.5 grams, black shiny seed skin, drought-resistant, anti-drought, anti-disease resistance, pods are concentrated, maturity is consistent, no fried pods, easy to harvest.

It should be distinguished by color and form, I have never heard of black and white beans.

Black beans are black beans, so black green beans and black and white beans are not black beans.