Andaman Bladder Orchid is a tree-dwelling orchid with
stem as thick as a goose quill. Leaves are very leathery, recurved,
obtusely unequally 2-lobed, 10-15 x 1.2-2 cm, strap-like.
Flower-cluster stalk is 12-17 cm long, equalling or longer than the
leaves. Flowers are small, pale greenihs-yellow with a purple band
within the margin. Lip is yellow, lateral sepal 3.3-3.8 mm long; dorsal
sepal 3.4-4.2 mm long; petals 2.8-3.1 x 1.3-1.8 mm, spur cylindric,
spotted with red. Andaman Bladder Orchid is native to E. Himalaya to
Philippines and Andaman & Nicobar.