Grass-Leaved Dendrobium is a large sized, tree-dwelling
orchid on lightly shaded branches or tree trunks with pendant,
branching, knotty, soft, slender stems that frequently form roots at
the nodes and grow into a tangled mess. The few, linear, grass-like,
quickly falling leaves arise on new growth at the tip. The plant blooms
on a very short, single flowered inflorescence that arises all along
the old and new canes with a single, fragrant flower that lasts about 2
weeks occuring in the spring. Flowers are 3.4-5cm long; sepals and
petals pale pink, tipped with purple, lip white with a central dark
purple spot surrounded by a yellow-orange ring, tip purple;
flower-stalk and ovary slender, hairless, 1.5-1.8cm long. Sepals are
spreading, oblong-lanceshaped, tapering, sometimes twisted, 7-veined,
4-5 x 0.8-1.2 cm; lateral sepals adnate at base to form a spur-like
mentum; mentum 5-6 mm long. Petals are elliptic-ovate, pointed to
tapering, 9-veined, 3.8-5 x 1.1-1.6cm. Lip is obscurely 3-lobed,
shortly clawed and hooded at base, broadly heart-shaped-round, tip
pointed, softly fringed with hairs, margins toothed-sawtoothed to
fringed, 3-4.9 x 1.8-3.5 cm. Grass-Leaved Dendrobium is found in E.
Sikkim to S. China and Indo-China, W. Taiwan, at altitudes of 800 to
1900 m.
Identification credit: Jambey Tsering
Photographed in Sessa, West Kameng, Arunachal Pradesh.
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The flower labeled Grass-Leaved Dendrobium is ...