Aeridinae

Aeridinae is a subtribe of the orchid family (Orchidaceae), within the tribe Vandeae of the subfamily Epidendroideae. It comprises a diverse group of mostly epiphytic tropical Asian orchids. Members are found from the Himalayas through Southeast Asia to Australia and the western Pacific, often occupying forest canopies and tree trunks in warm, humid habitats. The group is characterized by growth forms that in many genera are monopodial, with slender to robust stems bearing a succession of leaves from the apex.

Flowers are typically large and showy, arranged on erect or hanging inflorescences; the lip is often three-lobed and quite distinct, aiding in pollinator specificity. Pollination is usually by insects such as bees and butterflies, and many species are noted for fragrance.

Genera within Aeridinae include Aerides and Vanda, among others. The circumscription of Aeridinae has varied in recent classifications as molecular phylogenetic studies refine relationships within Vandeae, leading to changes in which genera are placed in Aeridinae or related subtribes.

In cultivation, Aeridinae orchids are highly prized for their dramatic flowers and architectural growth habit. They are predominantly epiphytes requiring bright light, warm to intermediate temperatures, high humidity, and good air circulation. They are commonly grown mounted or in well-draining bark media, with careful irrigation to avoid root rot. Though challenging in some cases, they reward growers with long-lasting inflorescences and striking specimens.