Characteristics:
Pale evening-primrose is an upright wildflower, with several simple to many several-branched stems to 50 cm tall. The bark is whitish, and exfoliates. The leaves are very numerous, primarily on the stems. Individual leaves are linear to linear-oblanceolate, from 2 to 6 cm in length and 5 to 10 mm wide. The leaf margins are variable, from entire to serrate, or with several prominent basal toothlike lobes. The leaf blades narrow gradually to petioles 5 to 15 mm long.
The fragrant flowers are in leafy spikes. The buds nod. The connate sepals are 1 to 2 cm in length, and turned to one side in flower. The four petals are obovate and rounded in shape, and are 15 to 30 mm in length. The petals are white, aging to pink. The stamens are about equal in length to the petals.
Pale evening-primrose is found primarily on sand dunes, but may occasionally be observed in gravelly soils.
Pale evening-primrose is found throughout eastern Oregon and Washington eastward to Idaho, and hence south to New Mexico and Arizona. In the Columbia River Gorge, it may be found between the elevations of 100'-200' from east of Wind Mt..
