Any of various ferns of the widely distributed genus Polypodium,having simple or compound fronds,round sori arranged in one or more rows along the midrib,and creeping rootstocks.

• 水龙骨属植物，一种分布广泛的水龙骨属植物，有简单的或复合的厥叶，沿中脑以一行或多行排列的圆形囊群，和爬行的根状茎。