This name is a synonym of Agave stricta Salm-Dyck.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 294241) with original publication details: Kakteen And. Sukk. 41: 89 1990.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:956204-1.
This name was in version 1 of The Plant List, record kew-294241, and has not been changed.