Which flower appears in Georgia O'Keeffe's 1932 painting Jimson Weed?

The flower in Georgia O'Keeffe’s 1932 painting Jimson Weed is jimson weed.

The painting, also known as Jimson Weed/White Flower No. 1, presents a large white trumpet-shaped blossom against a pale background. O'Keeffe frequently enlarged flowers so that viewers had to confront their shapes, folds, and subtle changes in tone rather than glance at them as small decorative objects.

Jimson weed is also called Datura, a plant known for its striking flowers and poisonous properties. O'Keeffe encountered the plant at her New Mexico home and studio. The painting became one of her most famous flower images.

It is sometimes mistaken for one of her poppy or iris paintings because all three subjects appear prominently in her work. The title, however, identifies the flower as jimson weed, not poppy or iris.