⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-195563, with some changes.
This name is a synonym of Stachys rigida subsp. quercetorum .
The record derives from WCSP which reports it as a synonym (record 195563
) with original publication details: Naturaliste Canad. 116: 47 1989 publ. 1990.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:285500-2
.