Aphid Trap

Proboscidea louisianica (Mill.) Thell. is a species of flowering plant in the Martyniaceae family. Its native range is uncertain but likely includes parts of the southwestern United States and Mexico. It has been introduced to various regions, such as Europe, North America, Australia, and South Africa. It is the most widely distributed species in its family. The plant is known by several common names, including devil's claw, unicorn-plant, common devil's claw, ram's horn, aphid trap, Louisiana unicorn-plant, purple-flowered devil's-claw, goat's head, elephant tusks, and martinoe. It was first published in 1912.