Antelope-horns (Asclepias Asperula) is a perennial herb in the Apocynaceae family with easy care difficulty. It requires low watering and full sun light in USDA hardiness zones 7-10. This plant is toxic to cats and dogs — keep it out of reach of pets.

A clump-forming perennial milkweed native to the southwestern United States, recognized for its unique, horn-shaped seed pods and greenish-white flowers.