What was the subject of Georgia O'Keeffe's 1932 painting Jimson Weed?

Georgia O'Keeffe's 1932 painting Jimson Weed depicts a jimson weed flower.

The work, also known as Jimson Weed/White Flower No. 1, shows a large white flower against a dark background. O'Keeffe frequently enlarged flowers so that viewers had to look closely at their forms, folds, and centers. Jimson weed, also called datura, grows in the American Southwest and became one of the plants she encountered during her years in New Mexico.

The painting is not a sunflower, calla lily, or poppy, although O'Keeffe painted all kinds of flowers and is often associated with floral images generally. In 2014, Jimson Weed/White Flower No. 1 sold at auction for $44.4 million, making it the most expensive painting by a female artist sold at auction at that time. Its title identifies the flower rather than a person or place.