⚠ Version 1 of The Plant List has been superseded.
This name record (from Tropicos) is not included in version 1.1 of The Plant List. It is possible the same name is included from a different data source, to check this you can search for Matelea rupestris in version 1.1 of The Plant List.
This name is a synonym of Polystemma viridiflorum .
The record derives from Tropicos which reports it as a synonym (record 2607896
) with original publication details: Ann. Missouri Bot. Gard. 28: 232 232 1941.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:154608-2
.