Selenicereus undatus

Selenicereus undatus

Selenicereus undatus, commonly known as the Pitahaya or Dragon Fruit, is a species of Cactaceae family. It is a climbing cactus that is native to Central America but is now cultivated in various parts of the world.

Description

Selenicereus undatus is a fast-growing, epiphytic or lithophytic vine. It has three-sided, fleshy stems that can reach up to 10 meters in length. The stems are covered with small, rigid spines and are green in color. The large, nocturnal flowers of Selenicereus undatus are among the most spectacular of all cacti. They are white, bell-shaped, and can reach up to 30 cm in length. The fruit of Selenicereus undatus, known as the dragon fruit, is oval, up to 12 cm long, and has a pink or red, leathery, scale-like skin. The flesh is white or red and contains numerous tiny black seeds.

Cultivation

Selenicereus undatus is cultivated for its fruit in tropical and subtropical regions around the world. It is a popular crop in countries such as Vietnam, Thailand, and the Philippines. The plant prefers a well-drained, sandy or loamy soil and a position in full sun or partial shade. It is drought-tolerant but requires regular watering during the growing season.

Uses

The fruit of Selenicereus undatus is eaten fresh or used in beverages, desserts, and salads. It is rich in vitamin C, fiber, and antioxidants. The flowers are also edible and are used in salads and as a garnish. In traditional medicine, the fruit is used to treat various ailments, including digestive problems, diabetes, and high blood pressure.

Propagation

Selenicereus undatus can be propagated by seeds or by cuttings. Seeds should be sown in a well-drained soil mix and kept at a temperature of 20-25°C. Cuttings should be allowed to dry for a few days before being planted in a well-drained soil mix.

See Also

• Cactaceae
• Epiphyte
• Lithophyte
• Dragon Fruit
• Pitahaya

References

• Anderson, Edward F. (2001). The Cactus Family. Timber Press, Portland, Oregon, USA.
• Hunt, D. (ed.) (2006). The New Cactus Lexicon. dh Books, Milborne Port, UK.
• Pimienta-Barrios, E. (ed.) (1994). Pitahaya (Dragon Fruit). Universidad de Guadalajara, Guadalajara, Mexico.