⚠ Version 1 of The Plant List has been superseded.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 Pterobryon angustifolium in version 1.1 of The Plant List.

Pterobryon angustifolium var. flabelliforme Besch. is a synonym of Pireella angustifolia (Müll. Hal.) Arzeni

This name is a synonym of Pireella angustifolia (Müll. Hal.) Arzeni.

The record derives from Tropicos which reports it as a synonym (record 35143534) with original publication details: Amer. Midl. Naturalist 52: 29 29 1954.