Oenothera nuttallii, the white-stemmed evening-primrose, is a species of flowering plant in the evening primrose family. It is native to western Canada (except British Columbia), and the north-central United States, and it has been introduced to Illinois. A perennial reaching , it is found in grasslands, sagebrush steppes, and plains, usually in sandy soils.
Oenothera nuttallii was scientifically described and named John Torrey and Asa Gray in 1840. It is part of the genus Oenothera in the Onagraceae family. It has synonyms according to Plants of the World Online.