Corm oblong, sometimes lobed. Leaves 2, linear, grass-like, up to 40 cm long. Scape 25-30 cm tall, remotely sheathed above, densely near base. Inflorescence ± laxly many-flowered, subsecund. Flowers nodding. Bracts ovate-lanceolate, acuminate, usually slightly longer than pedicel of ovary. Perianth segments subequal; sepals oblanceolate, acute, yellowish-green, striped with some purple, 12-14 mm long; petals narrower, spreading. Labellum cuneate-obovate in outline, 3-lobed, ± as long as sepals; side-lobes shallow, yellowish-green, rounded, erect and somewhat clasping the column; mid-lobe purple, orbicular-quadrate or oblong, with crenulate margins, basal portion of labellum with 3 ridges ending on mid-lobe in a fimbriate or tubercled patch. Spur short, conical-cylindric, obtuse, 3-4 (-5) mm long. Column slender, 6 mm long. Ovary with ± equally long, twisted pedicel.