1·Outer perianth segments dark brownish - red, short lanceolate, with whitish edge.
外花被片段为深棕红色，短披针形，带白色边缘。
2·The species is characterized by its long and lanceolate leaflets with undulate teeth.
本种以它的长和披针形的小叶具波状的齿为特点。
3·Scales attaching to the base of petiole are brown, lanceolate.
叶柄基部鳞片棕色，披针形。
4·The soybean variety under-sowing with maize ought to select that the leaf is middle size, lanceolate or elliptic, deep green colour, and the petiole is short and thick;
与玉米间作的大豆，宜选育叶片大小中等、披针形或短椭圆形、叶柄短而粗、叶色深绿的品种。