⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-63830, with some changes.
This name is a synonym of Physostegia virginiana subsp. virginiana .
The record derives from WCSP which reports it as a synonym (record 63830) with original publication details: Hort. Universel 4: 298 1843.