Common name(s): Narrow-leaf sundrops
Category: Family Onagraceae
Oenothera gaura
Oenothera speciosa
Ludwigia alternifolia
Oenothera biennis
Ludwigia peploides
Common name(s): Floating primrose willow, Creeping water primrose
Oenothera pilosella
Common name(s): Meadow evening primrose, Prairie sundrops
