Plants autotrophic, 11-16 cm tall. Rhizome with a few filiform roots. Stem slender, usually with 1 sheath toward base. Leaves 2, opposite, borne at ca. middle of plant, subsessile, deltoid or ovate-suborbicular, ca. 2 × 2.5 cm, base cuneate or triangular-cuneate, apex acute. Peduncle 2-4 cm, pubescent, with 1-4 sterile bracts; rachis 2.5-5 cm, subdensely 11-13-flowered; floral bracts ovate-lanceolate, ca. 3 × 1-1.5 mm, 1-veined, apex acute. Flowers small, resupinate; pedicel and ovary erect, 6-9 mm, glabrous. Dorsal sepal narrowly ovate, ca. 2 × 0.7 mm, glabrous, 1-veined, apex acute or subacute; lateral sepals oblong, falcate, ca. 2.5 × 1 mm, glabrous, apex subacute. Petals linear or spatulate-linear, ca. 2.3 × 0.3 mm, glabrous, 1-veined, apex subacute; lip erect, spatulate, 3.5-4.5 × ca. 1.3 mm, base cuneate and narrowing to ca. 0.5 mm wide, 3-veined, apex emarginate. Column ca. 1.5 mm. Fl. Jul.
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