Disocactus flagelliformis, also known as rat tail cactus, is a succulent plant that is native to Mexico. It has long, thin stems that can grow to be several feet in length. The stems are covered in small, sharp spines. Disocactus flagelliformis produces small, pink or white flowers in the spring or summer.

Disocactus flagelliformis is a relatively easy plant to care for. It prefers full sun or partial shade and well-draining soil. Water the plant when the soil is dry to the touch. Disocactus flagelliformis is not frost-tolerant and should be brought indoors during the winter.

Disocactus flagelliformis is a popular plant for hanging baskets or as an accent plant. It can also be grown indoors in a pot.