Oenothera oakesiana (A. Gray) J.W. Robbins ex S. Watson & J.M. Coult.
Annotated by Frank Lomer, 2018.

British Columbia: Rocky Mountain Trench, Valemount, north side of 17 Avenue, east of Dogwood Street. Elev. 790 m
52.821° N, 119.267° W,
Datum: Unknown. Coordinate Source: Verbatim from Collector/Sheet.
Sandy roadside, with Melilotus albus. Abundant weed, 1000+ plants over 100+ m along the road, but only in a few parts of town; lower leaves red, newer growth green, stems always curving toward the top so that the developing inflorescence is at a 30-50 degree angle in most cases; mostly single-stemmed plants, but robust ones with ascending shoots arising near the stem base; not yet in flower bud, but old fruit stalks are strictly erect; plants with only short curved hairs and long rather appressed hairs; pustular-based and glandular hairs absent.

Frank Lomer 9315, 2015 Jun 17
UBC, Accession: V246646

Oenothera oakesiana (A. Gray) J.W. Robbins ex S. Watson & J.M. Coult.
Annotated by Frank Lomer, 2016.

British Columbia: Rocky Mountain Trench, Jackman Flats, northwest of Ecological Reserve parking lot, 4 km southeast of Tete Jaune Cache. Elev. 860 m
52.942° N, 119.379° W,
Datum: NAD 83. Coordinate Source: Verbatim from Collector/Sheet.
Along railroad tracks, with Linaria dalmatica, Centaurea stoebe ssp. micranthos. 17 plants over 40 m stretch; stem tops leaning sideways in flower bud; calyx and all parts virtually devoid of glandular or pustular-based hairs, mostly just short and long strigose hairs.

Frank Lomer 9360, 2015 Jun 19
UBC, Accession: V246690

Oenothera oakesiana (A. Gray) J.W. Robbins ex S. Watson & J.M. Coult.
Annotated by Frank Lomer, 2016.

British Columbia: Rocky Mountain Trench, Valemount, northeast corner of Highway 5 and 5th Avenue. Elev. 784 m
52.83° N, 119.28° W,
Datum: Unknown. Coordinate Source: Verbatim from Collector/Sheet.
Blacktop cracks of old pavement and sandy gravel of vacant lot. Whole plant with curved short strigulose or long appressed hairs, not really any other hairs; growing with Oenothera biennis, but flowering later; first flowers barely strarting to open; population = 100+.

Frank Lomer 9362, 2015 Jun 20
UBC, Accession: V246692