⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-35136045, and has not been changed.
This name is a synonym of Rhynchostegium serrulatum subsp. eriense .
The record derives from Tropicos which reports it as a synonym (record 35136045
) with original publication details: Ottawa Naturalist 7: 22 22 1893.