Soybeans, either immature green beans in pod as in Japan, or shelled immature green beans as in China, are used as a vegetable in a number of countries. Although there is no strict definition for vegetable soybeans, generally large pods and seeds are preferred. The pubescenc·e and hilum co-lor should be gray.
Shanmugasundaram, S. and Yen, Chung-Ruey
"Research Notes : Screening for immature green soybeans as a vegetable,"
Soybean Genetics Newsletter: Vol. 9
, Article 32.
Available at: http://lib.dr.iastate.edu/soybeangenetics/vol9/iss1/32