This name is a synonym of Acalypha gracilens A.Gray.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 1357) with original publication details: Fl. Bor.-Amer. 2: 215 1803.
This name was in version 1 of The Plant List, record kew-1357.