2. The flower is sessile, with 1-2 axillary leaves, and the length is13-18 mm; Calyx tubular, 7-8 mm long, villous, calyx teeth lanceolate, apex conical, as long as calyx; Corolla is yellowish white or yellowish, slightly cyan at the base, long and obovate flag petal, and deep concave at the apex, which is obviously longer than Hebei petal and dragon bone petal;
3. The English fruit is cylindrical, straight or slightly curved, hairless or slightly pilose, with a slender beak at the top, the beak is about 2 cm long, the back seam is thickened, and the surface has obvious longitudinal reticulation, and the seed 10-20. The seeds are oblong-ovoid, brown and uneven in surface. The flowering period is from April to July, and the fruiting period is from July to September. ?
Extended data:
Variety classification
Soybean is divided into soybean, black bean and mung bean according to different colors.
Kidney beans can be divided into: lentils, kidney beans, kidney beans, green beans, green beans, cowpeas and so on. The colors of adzuki beans are red, yellow, light green, gray, white and black.
Beans include soybeans, broad beans, peas, mung beans, kidney beans, adzuki beans, black beans and red beans.