⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-43047, and has not been changed.
This name is a synonym of Rotheca sansibarensis subsp. caesia .
The record derives from WCSP which reports it as a synonym (record 43047
) with original publication details: Bot. Jahrb. Syst. 28: 299 1900.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:862393-1
.