Jimson Weed is Georgia O'Keeffe's 1936 painting featuring a large white trumpet flower.
The painting shows a close-up of a white jimson weed, also called Datura or sacred thornapple, against a blue background. O'Keeffe enlarged flowers so dramatically that petals and internal structures could fill the entire picture plane. This approach encouraged viewers to look at familiar natural forms with unusual attention.
Jimson Weed became one of O'Keeffe's best-known flower paintings. It was made during her mature period, when flowers, bones, shells, and desert objects served as subjects for precise yet visually powerful compositions. The work is sometimes described with a longer subtitle in collection records, but the canonical title is Jimson Weed.
The painting should not be confused with Black Iris, a dark iris composition from the 1920s, or Red Canna, another important flower series. Those works belong to related subjects but are separate paintings.