This name is a synonym of Draba bruniifolia subsp. heterocoma (Fenzl) Coode & Cullen.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 100360596) with original publication details: Pflanzenreich IV–105(Heft 89): 63. 1927.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:282369-1.
This name was in version 1 of The Plant List, record tro-100360596.