This name is a synonym of Acalypha alopecuroides Jacq..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 12802600) with original publication details: Bot. Voy. Herald 102 1853.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:292917-2.
This name was in version 1 of The Plant List, record tro-12802600, and has not been changed.