⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-35173686, and has not been changed.

Orthotrichum perforatum Müll. Hal. is a synonym of Orthotrichum sordidum Sull. & Lesq.

This name is a synonym of Orthotrichum sordidum Sull. & Lesq..

The record derives from Tropicos which reports it as a synonym (record 35173686) with original publication details: Bot. Centralbl. 16: 124 124 1883.