Oenothera berlandieri
Oenothera berlandieri, commonly called Berlandier's sundrops, is a species of flowering plant in the evening primrose family (Onagraceae). It is native to North America, where it is found primarily in the south central region of the United States and in northern Mexico. Its natural habitat is dry prairies, often in rocky or sandy calcareous areas. "Oenothera berlandieri" is a bushy, semi-woody perennial. It produces showy yellow flowers in the summer. Taxonomy. There are two recognized subspecies. They are: