This name is a synonym of Arisaema costatum (Wall.) Mart..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 16085) with original publication details: Tent. Fl. Napal. t. 19 1824.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:85972-1.
This name was in version 1 of The Plant List, record kew-16085, and has not been changed.