小杉兰（学名：Huperzia selago）为石杉科石杉属下的一个种。

Huperzia selago, northern firmoss or fir clubmoss, is a vascular plant in the family Huperziaceae. It has a circumpolar distribution in temperate and boreal regions in both hemispheres. In the past, this species has also been named Lycopodium selago.