Large Dendrobium
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Large Dendrobium
P Native Photo: Jambey Tsering
Common name: Large Dendrobium
Botanical name: Dendrobium amplum    Family: Orchidaceae (Orchid family)
Synonyms: Bulbophyllum amplum, Epigeneium amplum, Callista ampla

Large Dendrobium is a small sized, tree-dwelling or rock-dwelling orchid with very stout, obliquely ellipsoidal, grooved pseudobulbs with 2 broadly elliptic-oblong, blunt, notched at the tip, stalkless or shortly stalked leaves. The plant blooms on an apical, short, racemose, 1 to few flowered inflorescence subtended by a basal bract, with powerfully fragrant, heavy textured, longlasting flowers. Flowers are spreading, yellowish green, spotted with deep brown, large; flower-stalk and ovary 4.5-5 cm. Dorsal sepal is lanceshaped, 4.5-6.5 cm x about 8 mm, pointed; lateral sepals sickle shaped-lanceshaped, about 4.5 x 1.1-1.5 cm, pointed-tapering. Petals are lanceshaped, about 14 x 6 mm, pointed-tapering. Lip is pandurate in outline, about 2.6 cm, 3-lobed; lateral lobes erect, small; mid-lobe almost rhombic, about 6 mm, about as wide as or slightly wider than disk and lateral lobes, blunt and with a short sharp point. Large Dendrobium is found in Central Himalaya to NE India to China, at altitudes of 1000-1900 m. Flowering: October-November.

Identification credit: Jambey Tsering Photographed in Sessa, West Kameng, Arunachal Pradesh.

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