⚠ Version 1 of The Plant List has been superseded.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 Hygroamblystegium irriguum in version 1.1 of The Plant List.

Hygroamblystegium irriguum subsp. orthocladon (P. Beauv.) Grout is a synonym of Hygroamblystegium fluviatile var. orthocladon (P. Beauv.) H.A. Crum, Steere & L.E. Anderson

This name is a synonym of Hygroamblystegium fluviatile var. orthocladon (P. Beauv.) H.A. Crum, Steere & L.E. Anderson.

The record derives from Tropicos which reports it as a synonym (record 35164229) with original publication details: Moss Fl. N. Amer. 3: 73 73 1931.