This name is a synonym of Allionia choisyi Standl..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50041930) with original publication details: Contr. U.S. Natl. Herb. 12(8): 332 1909.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:267908-2.
This name was in version 1 of The Plant List, record tro-50041930, and has not been changed.