⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-155802, 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 155802) with original publication details: Bull. New York State Mus. Nat. Hist. 176: 38 1915.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:195668-2.