This name is a synonym of Agave salmiana subsp. crassispina .
The record derives from WCSP
(data supplied on )
which reports it as a synonym (record 293729
) with original publication details: Stand. Cycl. Hort. 1: 234 1914.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:6445-2
.
This name was in version 1 of The Plant List, record kew-293729, and has not been changed.