This name is a synonym of Oxalis spiralis Ruiz & Pav. ex G.Don.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 23700477) with original publication details: N. Amer. Fl. 25(1): 55 1907.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:269420-2.
This name was in version 1 of The Plant List, record tro-23700477.