This name is a synonym of Tridens albescens (Vasey) Wooton & Stand..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50199781) with original publication details: U.S.D.A. Div. Bot. Bull. 1(t): 33 1891.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:257700-2.
This name was in version 1 of The Plant List, record tro-50199781.