This name is a synonym of Acalypha virginica var. deamii Weath..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 448) with original publication details: Vasc. Pl. Illinois 301 1955.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:337318-1.
This name was in version 1 of The Plant List, record kew-448, and has not been changed.