Longspine Horsebrush (Tetradymia Axillaris) is a perennial shrub in the Asteraceae family with moderate care difficulty. It requires drought-tolerant 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.

Tetradymia axillaris is a spiny shrub native to the southwestern United States, commonly found in sagebrush and desert plant communities. It forms sprawling thickets with very sharp spines.