Wildflowers of Tucson, Arizona
White Wildflower
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Datura discolor - Desert Thorn-apple Datura discolor - Desert Thorn-apple
Scientific Name: Datura discolor
Common Name: Desert Thorn-apple
Flower Color: White with purple markings
Plant Type: Herb, Annual
Height: To 2 feet (61 cm) tall, but usually less
Date Observed: August 27, 2005
Notes: Poisonous. The 6 1/3 inch (16 cm) long, tubular flowers are nocturnal, held erect, and have a glabrous corolla with short lobe tips and a purple-streaked throat. The rounded fruits are spiny, drooping, minutely hairy, and contain black seeds. The leaves are alternate, broadly oval-shaped, and coarsely toothed.
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