Oenothera caespitosa Nutt. var. marginata (Nutt. ex Hook. & Arn.) Munz
[= Oenothera cespitosa ssp. marginata]

Idaho: Fremont County: St. Anthony Sand Dunes, 8 miles northwest of St. Anthony and 1/2 mile off Red Road to east of Sand Hill Resort. Elev. 5050 ft.
T8N R40E S17 SW
Datum: WGS 84. Uncertainty: 500 meters. Coordinate Source: Digital Map.
Flat area on basalt rise overlain by sandy fine textured soil. In sage-grass-juniper community, in openings between dominants where widely spaced. Also in shallow soil of basalt outcrops where basalt is deeply fissured. With Artemisia tridentata, Purshia tridentata, Chrysothamnus nauseosus, Stipa comata, Poa sp., Agrostis sp. Petals white, fading to pink. Sample flowers probably 24 hours old when collected. Allium acuminatum (019) growing against taproot. Common in secondary community but only found in one local within primary community. Phenology: Flowers.

Vincent R. Lee 012, Jun 2, 1981
ID, Accession: 74225, Barcode: ID064891