This name is a synonym of Astilbe rivularis Buch.-Ham. ex D.Don.
The record derives from WCSP (in review)
(data supplied on 2012-03-26)
which reports it as a synonym with original publication details: Schoolfl. Java 467 1911.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:790286-1.
This name was in version 1 of The Plant List, record kew-2656756.