They are flat and round, or oval, in a pale yellowish color. A big difference from the domestic Chinese soybeans is that the hilum is is brown. They are commonly called Black-Hilum Beans.

采集的进口转基因大豆，呈扁圆或椭圆、色泽暗黄，与国产大豆明显区别是豆脐呈黄褐色，俗称“黑脐豆”。