This name is a synonym of Triadenum virginicum (L.) Raf..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name with original publication details: Ann. Sci. Nat., Bot. II, 5: 168 1836.
This name was in version 1 of The Plant List, record kew-2787727.