Oenothera laciniata aka Cutleaf Evening Primrose

Oenothera laciniata, commonly known as cutleaf evening primrose, is a species of flowering plant in the evening primrose family. It is native to the eastern United States, but has been introduced and can be found in many other areas as a noxious weed. This annual or short-lived perennial herb produces a spreading stem from a hairy rosette of deeply cut or lobed leaves. The leaves have a pinnate vein structure and start as a rosette around a taproot, but once stems appear, their leaves will be alternating. The flowers occur in the axils of leaves higher on the stem and have pale to deep yellow petals up to about 2 centimeters long, which fade orange, pink, or red with age. The fruit is a cylindrical capsule up to 5 centimeters in length. Cutleaf evening primroses grow 4-18 inches high, erect or prostrate, and their flowers appear in greater numbers at night since they are mainly moth-pollinated. This plant is also useful and can be grown as a rare houseplant that needs regular watering and well-draining soil.