⚠ Version 1 of The Plant List has been superseded.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 Thysanomitrion hawaiicum in version 1.1 of The Plant List.
Thysanomitrion hawaiicum var. robustum
is a synonym
of Campylopus sandwicensis var. robustus
This name is a synonym of Campylopus sandwicensis var. robustus .
The record derives from Tropicos which reports it as a synonym (record 35106059) with original publication details: Flora 82: 441 441 1896.