Thick-Lip Spider Orchid
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Thick-Lip Spider Orchid
P Native Photo: Jambey Tsering
Common name: Thick-Lip Spider Orchid
Botanical name: Arachnis labrosa    Family: Orchidaceae (Orchid family)
Synonyms: Arhynchium labrosum, Armodorum labrosum, Renanthera labrosa

Thick-Lip Spider Orchid is a large sized, tree-dwelling or rock-dwelling orchid with an elongate, stout, slightly woody stem carrying 5 to 8, keeled, leathery, linear-oblong, unequally bilobed apically, basally clasping leaves. The plant blooms in the later summer with up to 10, distant flowers on a leaf-axil raceme, to sometimes branching cluster, 60 cm long, pendant and carrying waxy, fragrant flowers. Flowers are pale yellow with reddish brown spots or markings mostly along margins and at tip, or greenish yellow without red-brown markings; flower-stalk and ovary brown, about 2 cm, slender. Sepals are inverted-lanceshaped, about 18 x 3 mm, blunt. Petals are oblong, 9-11 x 2-5 mm, somewhat pointed; lip about 1 cm, fleshy, 3-lobed; lateral lobes erect, almost triangular, small, about 2 mm wide at base, blunt; mid-lobe strap-shaped, fleshy, spur saccate-conic, 4-5 mm, thickly fleshy. Column is about 6 x 4 mm, stout. Thick-Lip Spider Orchid is native to E. Himalaya to Taiwan.

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

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