Oenothera

Oenothera affinis

Long-flower evening-primrose

Oenothera albicaulis

White-stem evening-primrose

Oenothera argillicola

Shale barren evening primrose

Oenothera grandiflora

Oenothera brachycarpa

Shortfruit evening primrose

Oenothera caespitosa var. navajoensis

Oenothera californica subsp. californica

Oenothera cavernae

Oenothera coloradensis subsp. coloradensis

Oenothera filiformis

Oenothera fruticosa

Narrow-leaf evening-primrose

Oenothera glazioviana

Large-flower evening-primrose

Oenothera hexandra subsp. hexandra

Oenothera mckelveyae

Oenothera pilosella

Meadow evening primrose

Oenothera psammophila

Oenothera tetraptera

Four-wing evening-primrose

Oenothera xerogaura

Oenothera stricta subsp. stricta

Evening primrose

Oenothera heterophylla subsp. heterophylla

Variableleaf evening primrose