This name is a synonym of Valeriana laxiflora DC..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 33500354) with original publication details: Enum. Pl. 2: 4 1805.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:859944-1.
This name was in version 1 of The Plant List, record tro-33500354.