珊瑚菜（学名：Glehnia littoralis），又名滨防风，为伞形科珊瑚菜属的植物。

多年生草本，全株密被灰白色柔毛；主根直长，细柱形；茎单一直立；基生叶及茎下部的叶为一至二回三出式羽状复叶，倒卵状椭圆形或卵圆形小叶；复伞形花序顶生，夏季开白色花。

Glehnia littoralis (in the monotypic genus Glehnia) is a species of plant in the "carrot family", Apiaceae, known by several common names including beach silvertop and American silvertop in English, and bei sha shen (Chinese:北沙參) and shan hu cai (Chinese:珊瑚菜) in Chinese. The genus was named after Russian botanist Peter von Glehn.