This name is a synonym of Triodanis perfoliata subsp. biflora (Ruiz & Pav.) Lammers.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 369170) with original publication details: Trans. Amer. Philos. Soc. n.s., 8: 256 1843.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:142456-1.
This name was in version 1 of The Plant List, record kew-369170.