Leucostele undulosa
Leucostele undulosa is a species of Leucostele found in Chile.
Description
Leucostele undulosa has a columnar growth habit, achieving a height of up to and a trunk diameter of. Its dark green branches, measuring 15 centimeters in diameter, feature stems with 20 ribs and obovate gray areoles, each high and in diameter. Within these areoles, 3-4 central spines, measuring in length, exhibit a white hue with brown markings, accompanied by 12 radial spines measuring in length, displaying a spectrum from dark green to white with brown spots.This plant produces 3–10 subapical white flowers, measuring in length and in diameter. The green fruits, in diameter and long, feature abundant axillary gray hairs. Notably, Leucostele undulosa is similar to Leucostele skottsbergii but stands out with its darker green branches, more ribs, a thicker and different color spines.