About Oenothera pubescens Willd. ex Spreng.
Oenothera pubescens Willd. ex Spreng., commonly called the South American evening-primrose, is a species of plant in the evening primrose family. Its native range includes the Southwestern United States (southeastern California, Arizona, New Mexico, and western Texas), more than 20 states across Mexico, Guatemala, and Western South America (Colombia, Ecuador, and Peru). This plant has local use in folk medicine.