The results showed that the fruits of. Polygonum section Persicaria are ovoid or elliptic-ovoid,triangulate or biconcave or biconvex;

• 结果表明,蓼属春蓼组植物的果实形态为卵形或椭圆状卵形,具三棱、双凹或双凸,顶端渐狭,有喙或无喙;