⚠ Version 1 of The Plant List has been superseded.

This name record (from Tropicos) is not included in version 1.1 of The Plant List. It is possible the same name is included from a different data source, to check this you can search for Polytrichum nanum in version 1.1 of The Plant List.

Polytrichum nanum var. pumilum (Sw. ex Hedw.) Hartm. is a synonym of Pogonatum polytrichoides var. pumilum (Sw. ex Hedw.) Brockm.

This name is a synonym of Pogonatum polytrichoides var. pumilum (Sw. ex Hedw.) Brockm..

The record derives from Tropicos which reports it as a synonym (record 35141669) with original publication details: Handb. Skand. Fl. 406 406 1820.