This name is a synonym of Begonia heracleifolia Cham. & Schltdl..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 3400860) with original publication details: Icon. Pl. Rar. 1: 16, t. 7 1840.
This name was in version 1 of The Plant List, record tro-3400860.