| Oenothera
biennis
L. common evening primrose Native |
                                      
|
| Oenothera
oakesiana
(A.Gray) J.W.Robbins ex S.Wats. & Coult. = O. angustissima R.R. Gates = O. biennis var. oakesiana Gray Oakes' evening primrose, cross-shaped evening primrose Native |
                   
|
| Oenothera
parviflora
L. small-flowered evening primrose Native |
        
|
| Oenothera
perennis
L. little evening primrose, little sundrops Native |
          
|
| Oenothera
pilosella
Raf. ssp. pilosella meadow evening primrose, hairy sundrops Introduced |
 
|