⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-29200937, with some changes.
This name is a synonym of Otacanthus azureus (Linden) Ronse.
The record derives from Tropicos which reports it as a synonym (record 29200937) with original publication details: Bot. Jahrb. Syst. 28(1): 16-17 16 1890.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:251811-2.