Selenicereus setaceus, commonly known as the Fishbone Cactus, is a perennial, epiphytic cactus native to a variety of habitats including subtropical or tropical dry forests, moist lowland forests, and rocky areas in Argentina, Bolivia, Brazil, and Paraguay. It is a climbing or sprawling plant that uses aerial roots to attach to surfaces. The Fishbone Cactus can reach lengths of several meters under ideal conditions. Its stems are slender and produce lateral branches that resemble a fish’s skeleton, hence the common name. The plant is known for its nocturnal, large, white flowers that bloom for a single night and are highly fragrant, attracting pollinators such as bats and moths.

In cultivation, Selenicereus setaceus is valued for its unique, ornamental appearance and its low-maintenance requirements. It is often grown in hanging baskets or as a climbing plant with support, making it a popular choice for indoor gardens and terrariums. It thrives in well-draining soil, requires moderate watering, and prefers bright, indirect light or partial shade. While it is not prone to many diseases, root rot can occur if overwatered. This species is not typically invasive when grown outside its native range, but care should be taken to avoid overly humid conditions that can promote fungal growth.CC BY-SA 4.0