This name is a synonym of Alternanthera pungens Kunth.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Contr. Ocas. Mus. Hist. Nat. Colegio "De La Salle" 9: 1 1950.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:59218-1.
This name was in version 1 of The Plant List, record kew-2631250.