This name is a synonym of Oxygonum sinuatum (Hochst. & Steud ex Meisn.) Dammer.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Prodr. 14: 40 1856.
This name was in version 1 of The Plant List, record kew-2711104.