Oenothera

Oenothera is a genus of flowering plants that belongs to the family Onagraceae. They are commonly known as "evening primrose" and are prized for their colorful, fragrant flowers that bloom at night. Oenothera plants are native to North and South America, and are now grown in many other parts of the world as ornamental plants.

Oenothera plants have upright or trailing stems that can reach up to three feet in height. The flowers are typically yellow, pink, or white, and have four petals that open in the evening and close in the morning. The foliage of Oenothera plants is often green and can be quite ornamental, with lance-shaped leaves.