1. Peanut, formerly known as groundnut, is a kind of nut which is rich in yield and widely eaten in China, also known as "longevity fruit", "mudou" and "fandou". It belongs to Rosaceae, panicum miliaceum of Leguminosae, with erect or creeping stems, 30-80 cm long, wings separated from keel, pods 2-5 cm long,1~1.3 cm wide, swollen, thick pods, and flowering and fruiting period from June to August. Mainly distributed in Brazil, China, Egypt and other places. It can be used as raw material for cosmetics such as soap and hair tonic.
2. Soybean is an annual herb of Leguminosae, with a height of 30-90 cm. Stems are stout, erect and densely covered with brown bristles. Leaves usually 3-foliolate; Stipules veined and yellow pilose; Petiole 2-20 cm long; Leaflets broadly ovate, papery; Racemes are short with few flowers and long with many flowers; The total pedicel usually has 5-8 sessile, tightly packed flowers; Bracts lanceolate, strigose; Bracteoles lanceolate, appressed bristles; Calyx is lanceolate, with purple, lavender or white flowers, pedicel at the base, and petaloid wings. Pods are fat, slightly curved, drooping, yellow-green, densely covered with brown-yellow long hair; 2-5 seeds, oval, nearly spherical, smooth seed coat, light green, yellow, brown and black and so on. The flowering period is from June to July, and the fruiting period is from July to September. Originated in China, it is cultivated all over China, and also widely cultivated all over the world. Soybean is one of the important food crops in China, which has been cultivated for 5,000 years. It was called glutinous rice in ancient times. It is mainly produced in the northeast of China, and its seeds are rich in protein. Soybean is most commonly used to make various bean products, extract soybean oil, brew soy sauce and extract protein.