Epipremnum is a genus of evergreen perennial vines in the family Araceae (order Alismatales), native to tropical forests stretching from China and the Himalayas through Southeast Asia to Australia and the western Pacific. The roughly 15 recognised species climb by means of aerial roots and, in natural forest conditions, can reach over 40 m (130 ft) in length with leaves up to 3 m (10 ft) long. In cultivation, growth is far more modest. Juvenile leaves are typically bright green, frequently marked with irregular yellow or white variegation; mature leaves on established climbers can become deeply lobed or fenestrated.
Epipremnum belongs to the tribe Monstereae and is closely allied to Rhaphidophora, Scindapsus, and Amydrium — genera with which it is frequently confused in horticulture. Like many aroids, all parts of the plant are toxic to humans and animals, primarily because of trichosclereids (long sharp calcium oxalate cells) and raphides. Some species exhibit skototropism in early growth, growing toward shade to locate host tree trunks before climbing toward the light.
The genus is best known in cultivation through common names such as devil's ivy, pothos, and centipede tongavine. Epipremnum pinnatum, widespread from Southeast Asia to northern Australia, is a significant member often grown for its ornamental foliage.
Etymology
The genus name Epipremnum derives from the Greek ἐπί (epi, "upon") and πρέμνον (premnon, "stump" or "tree trunk"), referencing the plant's habit of climbing over and upon tree trunks and stumps in its native forest habitat.
Distribution
Epipremnum species are native to tropical forests spanning a broad arc from southern China and the Himalayas through Southeast Asia, Malesia (including Borneo, Sulawesi, and the Maluku Islands), New Guinea, Melanesia, and northern Australia. Individual species have more restricted ranges: E. moszkowskii is endemic to western New Guinea, E. meeboldii to the Manipur region of India, and E. ceramense to the Maluku Islands. Several species have naturalised widely beyond their native range in tropical and subtropical regions worldwide.
Cultivation
Epipremnum species are among the most commonly cultivated houseplants in temperate regions. They tolerate low light conditions, irregular watering, and a range of indoor temperatures, making them highly adaptable. In containers, growth is significantly reduced compared to wild specimens. Plants are typically propagated from stem cuttings. All parts are toxic to pets and humans if ingested, due to calcium oxalate crystals.
Taxonomy Notes
Epipremnum belongs to the tribe Monstereae within Araceae and is closely related to Rhaphidophora, Scindapsus, and Amydrium, with which it is frequently confused in both botanical literature and horticulture. The most familiar cultivated species, commonly sold as "pothos," has undergone several name changes and has at various times been placed in Pothos, Scindapsus, and Raphidophora before being settled as Epipremnum aureum.
