Erect terrestrial herbs from a rhizome, up to about 4.2 dm. tall. Stems short, cormous, bifoliate, covered with the scarious sheaths of the petioles and bracts. Leaves long-petiolate; lamina 5-12 cm. long and 2-7 cm. broad, ovate-lanceolate to ovate, acute or acuminate, membranaceous, paired, reaching to about the middle of the peduncle; petioles sheathing the lower part of the peduncle. Inflorescence a short, dense, many-flowered, subumbellate raceme. Dorsal sepal 3.5-4 mm. long and 1.5-2.7 mm. broad, elliptic-oblong to ovate, obtuse. Lateral sepals 3-4 mm. long and 1.3-2.2 mm. broad, oblong-oval to oblong-ovate, obtuse, free to the base or nearly so. Petals 2.5-3.5 mm. long and 0.3-0.4 mm. broad, linear (or linear-lanceolate), obtuse. Lip 3-4 mm. long and 2.5-4 mm. broad, oblong-cordate to triangular-cordate, auricles at the base erect or uncinate, trilobulate at the apex, disc excavated and gibbous, the cavity with a longitudinal ridge.
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