Purslane is a common wild vegetable; its mainly edible young stems and leaves are green and brown, with few flowers. Purslane has bloomed and its stems and leaves have aged; it is not edible. In particular, improper consumption of fake horse teeth can easily lead to poisoning. There are many types of purslane, and the growth form of purslane is very similar to that of purslane. The leaves of purslane are oval, obovate to spatulate, with a rounded apex; the flowers are solitary in the leaf axils, and the corolla is blue, purple or white; the capsule is oblong, with a sharp apex, surrounded by a persistent calyx; the seeds are oval, with one end truncated. , yellowish brown, with longitudinal ridges on the surface. Purslane mostly grows near water, wetlands or beaches, and its flowering period is 5-10 months. Blooming horse teeth should especially be avoided.