⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-35172460, with some changes.

Oligotrichum cavifolium (Wilson) Arnold is a synonym of Psilopilum cavifolium (Wilson) I. Hagen

The record derives from Tropicos which reports it as a synonym (record 35172460) with original publication details: Ark. Bot. 15(5): 47 47 1918.