⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-50082757, with some changes.

Oenothera hilgardii Greene is a synonym of Neoholmgrenia hilgardii (Greene) W.L. Wagner & Hoch

This name is a synonym of Neoholmgrenia hilgardii (Greene) W.L. Wagner & Hoch.

The record derives from Tropicos which reports it as a synonym (record 50082757) with original publication details: Bull. Torrey Bot. Club 10(4): 41 41 1883.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:613773-1.