Oncidium represents a diverse group of epiphytic orchids. Mature specimens develop clusters of pseudobulbs that are ovoid to conical in shape, each supporting 1-3 mid-green, leathery leaves of varying forms. Floral panicles emerge from the bases of the pseudobulbs, showcasing a wide range of colors and shapes.

Oncidium muelleri

Oncidium naevium is a medium-sized epiphytic orchid characterized by its upright, evergreen leaves that can reach lengths of 20 to 30 centimeters. Fresh growth emerges from the base of the swollen pseudobulb, which serves as a reservoir for water and nutrients. Each pseudobulb has an oval, compressed shape and is partially enveloped by four to five green sheaths that bear leaves. Typically, this orchid blooms during the winter and spring months, sending out arching stems that measure between 30 to 40 centimeters in length. New flowering stems develop from the axils of both young and matured pseudobulbs, as well as from the leafed sheaths. The flowers are white, star-shaped, emit a sweet fragrance, and feature tiny red dots along with a yellow central spot. A well-established plant can produce six or more flowering stems, each about 30 centimeters long, creating a notable floral display.

Oncidium naevium

Oncidium nanum

Oncidium nebulosum

Oncidium nigratum

Oncidium noezlianum is an epiphytic orchid that typically grows to a small to medium size. It features elongated, elliptical leaves that measure approximately 25 cm in length and have a leathery texture. New shoots emerge from the swollen base of the plant, known as the pseudobulb, which functions as a reservoir for water and nutrients. These pseudobulbs are egg-shaped and slightly flattened at the top, each supporting a single leaf along with two or more leaf-bearing sheaths at the base. The flowering period occurs during autumn and winter, with long, pendulous stems ranging from 20 to 40 cm that bear multiple orange-red flowers. Each flower is star-shaped, with a diameter between 2.5 and 4.5 cm.

Oncidium noezlianum

Oncidium noezlianum 'Pinchbeck'

Oncidium nubigerum

Oncidium oblongatum 'Rowena Muggison'

Oncidium obryzatum

Oncidium olivaceum 'Lawrenceanum'

Oncidium orgyale 'Loja'

Oncidium ornithorhynchum 'Olivia'

Oncidium ornithorhynchum 'Rosemaen'

Oncidium ornithorhynchum Kunth is an evergreen epiphytic orchid that typically grows to a small to medium size. Its leaves, which are linear and upright, can reach lengths of 20 to 40 cm. New growth emerges from the base of the swollen stem, known as the pseudobulb. These pseudobulbs are oval in shape, measuring between 3 and 8 cm in length and 3 to 5 cm in width, with a compressed top. Each pseudobulb supports two or more leaves at its apex. This orchid generally produces flowers in the autumn and winter months on long, pendulous stems that can measure from 15 to 60 cm. The flowering stems develop from the axils of leafed sheaths that encircle the young, mature pseudobulbs. The blooms, which can reach up to 2 cm in diameter, are pale pink and emit a pleasant fragrance. Well-established specimens are capable of producing multiple flowering stems, creating a notable floral display.

Oncidium ornithorhynchum Kunth

Oncidium ornithorhynchum album is an evergreen epiphytic orchid that ranges from small to medium in size. Its leaves are linear and can grow between 20 and 40 centimeters in length, emerging from the base of swollen pseudobulbs. These pseudobulbs are egg-shaped, measuring 3 to 8 centimeters long and 3 to 5 centimeters wide, with a compressed top and typically bearing two or more leaves each. The plant tends to bloom in autumn and winter, producing pendulous, often branched flower stems that can reach lengths of 15 to 60 centimeters. New flowering stems develop from the axils of leafed sheaths that encircle the young, mature pseudobulbs. The flowers are fragrant, measuring up to 2 centimeters across, and are usually white or pale cream. Larger, mature specimens can generate multiple flowering stems, resulting in a notable floral display.

Oncidium ornithorhynchum album

Oncidium panduratum

Oncidium papilio is a medium-sized epiphytic orchid that thrives in warm conditions. It produces new growth from the base of its swollen stems, known as pseudobulbs. These pseudobulbs are rounded, measuring around 3 to 5 cm in diameter, and support a single leaf that can reach lengths of 15 to 20 cm. The leaves are stiff, featuring a dark green color interspersed with mottled purple or brown-red markings. Flowering stems arise from the base of mature pseudobulbs, showcasing multiple flowers that bloom sequentially. These upright stems can grow as tall as 120 cm. The flowers themselves are distinctively shaped, measuring between 13 and 15 cm, with a yellow hue accented by a reddish-brown pattern.

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