This name is a synonym of Piper kadsura (Choisy) Ohwi.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 8502657) with original publication details: Mém. Soc. Phys. Genève 6: 475 1833.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:269120-1.
This name was in version 1 of The Plant List, record tro-8502657.