#epiphytic orchid
- Aerangis — A genus of tropical epiphytic and lithophytic orchids in the family Orchidaceae, native primarily to tropical Africa and Madagascar, structurally characterized by short stems, fleshy distichously arranged leaves, and pendulous inflorescences with star-shaped, white or translucent flowers that feature a long nectar spur and emit an intense fragrance during the night.
- Aërangis biloba — A popular species of epiphytic orchid in the genus Aerangis, native to a wide range of tropical West and Central Africa. It is structurally recognized by its obovate leaves that feature an asymmetrically split tip forming two distinct lobes (bilobed), and by pendulous spikes bearing up to twenty star-like, white flowers with pale pink hues on their short spurs, heavily fragrant at night.
- Aërangis kotschyi — A spectacular, large-sized species of epiphytic orchid in the genus Aerangis, native to East and South Africa. It is structurally renowned for its incredibly long nectar spurs, which can reach between 20 and 30 centimeters in length, featuring short stems, fleshy dark-green leaves slightly wavy along the margins, and pendulous spikes bearing snow-white flowers with ivory hues, heavily fragrant at night.
- Aërangis modesta — An elegant, medium-sized species of epiphytic orchid, endemic to Madagascar and the Comoro Islands. It is structurally characterized by glossy, obovate, bright-green leaves and spectacular pendulous spikes that can support up to 30 star-like, perfectly symmetrical white flowers, featuring short translucent spurs that emit a delicate, citrus-like fragrance during the night.
- Aerides — A genus of tropical epiphytic orchids in the family Orchidaceae, native to South and Southeast Asia (from India to the Philippines and New Guinea). They are structurally characterized by vigorous monopodial growth, thick and long aerial roots, and densely clustered pendulous inflorescences with spectacular, heavily fragrant flowers, typically white, pink, or purple, featuring a characteristic forward-pointing spur.
- Aërides cylindricum — A rare species of epiphytic orchid in the genus Aerides, family Orchidaceae, native to the mountainous regions of Southern India. It is structurally characterized by unique, terete, cylindrical leaves adapted to reduce water loss, and by short spikes bearing large, solitary or few-clustered flowers, which are white with pale pink or violet hues on the lip, heavily fragrant.
- Aërides falcatum — A remarkable ornamental species of epiphytic orchid in the family Orchidaceae, native to Southeast Asia (Thailand, Vietnam, Laos, Cambodia, and Myanmar). It is structurally characterized by robust monopodial growth, strap-like, rigid leaves slightly curved like a sickle (falcate), and long, pendulous inflorescences bearing numerous creamy-white flowers with spectacular bright pink-violet blotches on the tips and lip, heavily fragrant.
- Aërides odoratum — The type and highly popular species of tropical epiphytic orchid in the genus Aerides, family Orchidaceae, native to a wide range of South and Southeast Asia. It is structurally characterized by long and robust monopodial stems, strap-like fleshy leaves, and densely packed pendulous inflorescences bearing numerous white or creamy flowers with purple spots at the tips, renowned for their sweet and intense fragrance resembling lemon or jasmine.
- Aërides vandarum — A fascinating and distinct species of epiphytic or lithophytic orchid in the genus Aerides, native to the humid mountainous regions of Northeast India, Nepal, Bhutan, Myanmar, and Southern China. It is structurally recognized by its unique, thin, terete, cylindrical leaves (resembling those of the Vanda or Papilionanthe genus) and long, scrambling stems that produce large, spectacular flowers of a pure white or faint pinkish hue, featuring wavy margins and an intense fragrance.
- Anota densiflora — A synonymous scientific name for an epiphytic orchid species (currently taxonomically grouped under the genus Rhynchostylis, such as Rhynchostylis gigantea or related species), native to the tropical regions of Southeast Asia. The plant is characterized by robust stems, fleshy leaves, and a dense, pendulous inflorescence composed of numerous fragrant flowers, heavily studied in botany for its morphological adaptations to humid forest environments.
- Anota harrisoniana — A synonymous scientific name used in historical botanical nomenclature for an epiphytic orchid species, currently classified structurally as a variety of Rhynchostylis gigantea (or closely related species within the genus Rhynchostylis). This tropical plant is native to Southeast Asia and is recognized by its dense, cylindrical inflorescences made of pristine white or spotted, intensely fragrant flowers, making it a taxon of high interest in plant morphology studies.
- Anota violacea — A synonymous scientific name from historical taxonomy attributed to the epiphytic orchid Rhynchostylis retusa (or a violet-flowered variety of Rhynchostylis gigantea), native to the warm and humid regions of tropical Asia (Philippines, Thailand, India). The plant is structurally renowned for its spectacular, extremely long, and cylindrical inflorescences, densely packed with flowers spotted with shades of pink, purple, and violet, popularly nicknamed the 'foxtail orchid'.
- Ansellia — A genus of epiphytic or lithophytic orchids, native to the tropical and subtropical regions of Africa, named in honor of the botanist John Ansell. This taxonomic group comprises large plants with robust, cylindrical pseudobulbs and spectacular paniculate inflorescences, representing a unique structural element in African flora due to its adaptations to climates with prolonged dry seasons.
- Ansellia africana — A binomial scientific name for the single widely accepted species in the genus Ansellia (the leopard orchid), a vigorous epiphytic plant widespread in the savannas and open woodlands of sub-Saharan Africa. The species is structurally renowned for its large, greenish-yellow flowers, heavily patterned with brown or chocolate spots, and for its ability to form massive colonies on the branches of large trees, strictly protected under international conventions on threatened flora.
- Ascocentrum ampullaceum — A species of miniature epiphytic orchid native to the mountainous regions of the Himalayas and Southeast Asia, currently taxonomically classified under the genus Vanda (as Vanda ampullacea). It is highly prized by collectors for its dense, compact inflorescences consisting of numerous flowers of an intense pink-magenta color, which typically appear in spring and grow from the axils of the rigid, distichous leaves.