⚠ Version 1 of The Plant List has been superseded.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 Orthotrichum cupulatum in version 1.1 of The Plant List.

Orthotrichum cupulatum var. riparium Huebener is a synonym of Orthotrichum nudum var. riparium (Huebener) Baehni

This name is a synonym of Orthotrichum nudum var. riparium (Huebener) Baehni.

The record derives from Tropicos which reports it as a synonym (record 35173327) with original publication details: Muscol. Germ. 381 381 1833.