- Camissonia californica – California Suncup
- Clarkia epilobioides – Canyon Clarkia
- Epilobium canum ssp. latifolium – Hummingbird Trumpet
- Gaura coccinea – Scarlet Beeblossom
- Gaura hexandra – Harlequinbush
- Gaura mollis – Velvetweed
- Oenothera caespitosa – Tufted Evening Primrose
- Oenothera elata – Hooker's Evening Primrose
- Oenothera primiveris – Desert Evening Primrose
- Oenothera rosea – Rose Evening Primrose
Onagraceae – Evening Primrose Family
Plants in the worldwide, but especially North American Evening Primrose Family (Onagraceae) are annual and perennial herbs and shrubs with a variety of leaf types (alternate, opposite, whorled, or basal, simple or pinnately compound) and flowers with 4 petals (rarely 0) and an inferior ovary, and fruit in the form of a capsule, berry, or nut.
Listed below are some of the southeastern Arizona plants in this family.