Polygonum capitatum is a perennial herb of Polygonum in Polygonaceae. It is usually wild and grows in patches on slopes and valley wetlands. Inflorescence head-shaped, flowering from June to September, bearing fruit from August to 65438+1October.

Polygonum capitatum is a humid mesophyte, and likes humid habitats. Strong adaptability, strong reproductive ability and relatively cold tolerance. Generally, it can grow on plots with an altitude of 600 ~ 1500m. The growth period is 2 10 days.