Appearance characteristics of wild pea

1. Cotyledons remain in the soil when they germinate, and the germs grow into stems and pinnately compound leaves after they are unearthed. The taproot is obvious, with many lateral roots, mainly concentrated in the topsoil of about 30 cm, and there are nodules at the roots.

2. The stem is square and hollow, with 3 ~ 5 branches at the base, and each branch produces 3 ~ 4 branches. The vines are 2 ~ 3 meters long, creeping or semi-creeping, and the natural height is 40 ~ 60 cm. The leaves are even pinnate compound leaves, each compound leaf has 5 ~ 10 pairs of lobules, which are oval, and the top of the compound leaf has 3 ~ 5 tendrils. The cotyledons of Osmunda japonica are lighter in color; The stems and leaves of Polygonum aviculare have thin and short hairs; Phyllostachys pubescens has dark cotyledons, large leaves and dense hairs on the stems and leaves. Wild pea is a raceme with pedicels growing from leaf axils. Each peduncle has 10 ~ 30 florets as an inflorescence, and the number of inflorescences per plant is about 200.