Oenothera deltoides Torr. & Frém. var. piperi Munz
[= Oenothera deltoides ssp. piperi]

Oregon: Humboldt County: Bloody Run Hills of the Santa Rosa Range, Sand Pass Road (as marked on the highway), 2.4 road miles west of US 95. Elev. 1463 m.
41.080°, -117.740°
Artemisia, Ephedra, Balsamorhiza. "University of Arizona Annotation Label: This specimen was used in the dissertation research of Margaret E. K. Evans in the Department of Ecology and Evolutionary Biology at the University of Arizona. The locality information was used to locate nearby weather stations for a study of climate and life history evolution. The manuscript reporting the results of the study has been accepted in the journal Evolution. M.E.K. Evans, March 2005".

A. P. Pinzl s.n., 01 Jul 1987
NY, Barcode: 00998659