Crucifixion Thorn (Castela Emoryi) is a perennial shrub in the Simaroubaceae family with moderate care difficulty. It requires drought-tolerant watering and full sun light in USDA hardiness zones 8-11. This plant is toxic to cats and dogs — keep it out of reach of pets.

Castela emoryi, commonly known as Crucifixion Thorn, is a desert shrub or small tree native to the arid regions of the southwestern United States and northwestern Mexico.