Learn everything about Pencil Cactus , a succulent plant native to tropical regions, also known as Sticks on Fire or Naked Lady. Find out how to plant, water, fertilize, and propagate this easy-growing ornamental with colorful branches and toxic sap. Amazon.in: pencil cactusKalkiplantation Pencil Cactus Plant Euphorbia Tirucalli Milk bush Decorative Succulent for Home Office Balcony garden Air Purifying Indoor Plant (Pack of 1 Plant) Pencil Cactus Plant Information The pencil cactus is known for its pencil or green bean-like foliage. In winter, its leaves turn totally red and then it looks even more beautiful. Leaves grow in bunches on the tips of the branches. The plant also produces yellow flowers covered with showy bracts. Despite its common name, the pencil cactus is not actually a cactus and is known for lacking sharp spines. This plant grows quickly and can be started year-round, though spring is ideal.