This name is a synonym of Mentha longifolia var. petiolata Boiss..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 349823) with original publication details: Bull. Herb. Boissier 2: 700 1894.
This name was in version 1 of The Plant List, record kew-349823, and has not been changed.