Lepismium houlletianum, with no widely recognized common name, is an epiphytic cactus native to the rainforests of South America, specifically in Argentina and Brazil, and potentially in Bolivia. It thrives in the understory of subtropical or tropical moist lowland forests and montane forests, often attaching itself to trees and absorbing moisture and nutrients from the air and rain. This cactus typically exhibits a cascading or vining growth habit, with long, segmented stems that can reach several feet in length. The stems are green to reddish in color, and the plant produces white to pale pink flowers that are small but quite showy when they bloom in the warmer months.

Lepismium houlletianum is valued for its unique, ornamental appearance and is often grown in hanging baskets or as a mounted specimen to mimic its natural epiphytic growth. It is relatively easy to maintain, requiring minimal water, well-draining soil, and bright, indirect light. It is not tolerant of frost and should be protected from cold temperatures. In cultivation, it is important to provide a humid environment and to avoid overwatering, which can lead to root rot. While it is not known to be particularly susceptible to pests or diseases, mealybugs and scale insects can sometimes be a problem.CC BY-SA 4.0