Oenothera

Oenothera fruticosa

Narrow-leaf evening-primrose

Oenothera glazioviana

Large-flower evening-primrose

Oenothera heterophylla subsp. heterophylla

Oenothera hexandra subsp. hexandra

Oenothera mckelveyae

Oenothera murdockii

Oenothera oakesiana

Oenothera pilosella

Meadow evening primrose

Oenothera psammophila

Oenothera stricta subsp. stricta

Oenothera tetraptera

Four-wing evening-primrose

Oenothera xerogaura