"Datura is a member of the Potato (Solanaceae) Family, also called the Deadly Nightshade Family. There are several species of the Datura genus, including D. wrightii, commonly referred to as the Southwestern Thorn Apple. D. stramonium is usually called Jimson Weed; D. metaloides is colloquially named Sacred Datura; and D. inoxia is usually referred to as Toloache. The smaller annual, D. discolor, is often called Moon Flower. It grows only 18 inches high and has a purple throat not found in other species." DesertUSA