⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-35159980, with some changes.
This name is a synonym of Fontinalis antipyretica subsp. gigantea .
The record derives from Tropicos which reports it as a synonym (record 35159980
) with original publication details: Musci Hep. U.S. (repr.) 104 104 1856.