Morphological characteristics of peanuts

Panicum miliaceum. Roots are rich in nodules; The stems are erect or prostrate, 30-80 cm long, and the stems and branches have horns, which are yellow villous and then become hairless. Leaves usually have 2 pairs of leaflets; Stipules 2-4 cm long, longitudinally veined and hairy; Petiole base holding stem, 5- 10 cm long, hairy; Leaflets are papery, ovoid, oblong to obovate, 2-4 cm long and 0.5-2 cm wide, with obtuse apex, sometimes slightly concave, prickly apex, nearly round base, entire, hairy on both sides and eyelashes on the edge; There are about 10 lateral veins on each side; Vein edges are interconnected to form a network; Petiole 2-5 mm long, covered with yellow-brown long hair; The flower is about 8 mm long; Bracts 2, lanceolate; Bracteoles lanceolate, ca. 5 mm long, longitudinally veined, pilose; Calyx tube thin, 4-6 cm long; Corolla yellow or golden yellow, flag petal diameter 65438 0.7 cm, spreading, apex concave; The wing flap is separated from the keel flap, and the wing flap is rectangular or oblique oval, slender; The keel flap is oval, folded in, and the top is narrowed into a beak, which is shorter than the wing flap; The style extends beyond the pharynx of calyx tube, and the top of the style is small and sparsely pilose. The pod is 2-5 cm long, 1- 1.3 cm wide, and the seed diameter is 0.5- 1 cm. The flowering and fruiting period is from June to August.