Triangle Cactus (Selenicereus Triangularis) is a perennial cactus in the Cactaceae family with moderate care difficulty. It requires moderate watering and full sun or partial shade light in USDA hardiness zones 9-11. This plant is safe for cats and dogs. It can be grown indoors.

Selenicereus triangularis is a spiny, evergreen climbing cactus with sharply three-angled stems, native to the Caribbean and tropical dry forests.