This name is a synonym of Calotropis gigantea (L.) Dryand..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50183675) with original publication details: Syst. Veg. 6: 91 1820.
This name was in version 1 of The Plant List, record tro-50183675.