⚠ Version 1 of The Plant List has been superseded.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 Hauya cornuta in version 1.1 of The Plant List.
This name is a synonym of Hauya elegans subsp. cornuta .
The record derives from Tropicos which reports it as a synonym (record 23201370
) with original publication details: Diagn. Pl. Nov. Mexic. 1: 13 13 1878.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:118081-2
.