This name is a synonym of Helianthus debilis subsp. cucumerifolius (Torr. & A.Gray) Heiser.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 95C7B78A-8E03-48EE-A32B-3C6141464AAC) with original publication details: "Syn. Fl. N Amer. 1, 2 (1897)" .
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:1055329-2.
This name was in version 1 of The Plant List, record gcc-32574.