Holmgrenia W.L.Wagner & Hoch Neoholmgrenia is a genus of flowering plants belonging to the family Onagraceae.

[1] Its native range is Western Canada (in the states of Alberta, British Columbia and Saskatchewan) to Western USA (in the states of California, Colorado, Idaho, Montana, Nevada, Oregon, Utah, Washington and Wyoming).

[1] The genus name of Neoholmgrenia is in honour of Patricia Kern Holmgren (b.

Holmgren's main botanical interests are the flora of the U.S. intermountain west.

It also honour's her husband Noel Herman Holmgren (b.