⚠ Version 1.1 of The Plant List has been superseded and should no longer be used.
The new version is available at http://www.worldfloraonline.org/tpl/kew-2898783. The new version is enhanced, using more data sources including Taxonomic Expert Networks and will be more frequently updated.
This name is a synonym of Reynoutria japonica .
The record derives from WCSP (in review) (data supplied on ) which reports it as a synonym and as an illegitimate name with original publication details: Cycl. Amer. Hort. 3: 1393 1901.
Full publication details for this name can be found in IPNI:
http://ipni.org/urn:lsid:ipni.org:names:60454799-2
.
This name record (from WCSP (in review)) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Polygonum sieboldii in version 1 of The Plant List.