| Plant description |
Epiphytic, caespitose herb, medium in size for the genus, up to 26 cm high including the inflorescence. Rhizome abbreviated. seudobulbs heteroblastic green to brown, ovoid and slightly flattened, finely rough in appearance, with one or two apical leaves, 17.2–25.0 × 1.7–2.1 cm, surrounded basally by 4 foliaceous and deciduous, distichous sheaths. Leaves reddish-green, sub-petiolate, conduplicate, obovate-ligulate, obtuse apiculate, 18.5–25.0 × 2.0–2.6 cm. Inflorescence basal, erect, paniculate, indistinctly flexuous to instead fractiflex panicle with many few-flowered (5), indistinctly flexuous, slightly spaced side-branches, ca. 29–50 cm long. Peduncular bracts appressed, scale-like, ca. 2.60–3.99 mm. Floral bracts triangular, acute, 5.8 mm. Ovary green terete slightly striated, slightly curved, pedicellate, 1.4–1.8 cm long including the pedicel. Flowers stellate, yellow-brown with lip and column white to rose. Dorsal sepal shortly spathulate, elliptic, acute to minutely apiculate, entire, distinctly reflexed, 5.71–6.00 × 1.26–2.0 mm. Laterals sepals, concave, fused by half of their length to form a cymbiform, bifid synsepal, apex carinate, acute, 6.0–7.39 × 2.16–2.50 mm. Petals sub-sessile, spreading to slightly reflexed, free, obovate-elliptic, acute, somewhat concave; 4.8–5.12 × 3.28 mm. Lip white to rose, broadly elliptic to sub-rhomboid, rigidly fused to the column basally through a pair of simple, short, ventral, longitudinal calli, 3.18–5.0 mm; callus white, of two apically diverging, fleshy and blunt keels, with intermediate minute papillae near the base, and extending to ca. half the length of the lip lamina. Column white to rose, terete, straight, stout, slightly arching, ventrally shallowly canaliculated, ca. 0.36 cm long; anther cap white, globular, and campanulate, ca. 1 mm broad; pollinarium ca. 1 mm long, of two pyriform cleft, folded pollinia on a ca. 0.5 mm long almost diamondshaped involute stipe, on a pulvinate viscidium. Seed capsule trilocular, greenish brown ca. 3.8 to 1.0 cm.
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