Sphagnopsida
（重定向自Sphagnidae）
![](/Images/godic/202502/12/Sphagnum_cuspidatum_041107a2454.jpg")
The Sphagnopsida includes a single subclass Sphagnidae, with two orders. The order Sphagnales contains four living genera: Sphagnum, with all but three of the species, and Ambuchanania, Eosphagnum, and Flatbergium, each with a single species. The Protosphagnales contains a single fossil species.