Rhizomes branched, odorless. Pseudostems 40--100 cm. Ligule orbicular, 2-lobed, to 1 mm; petiole absent to 5 mm; leaf blade lanceolate, 15--18 × ca. 3 cm, adaxially glabrous, abaxially pubescent or pilose. Inflorescences arising from rhizomes, ca. 1/2 embedded in ground, 4- or 5-flowered; peduncle 1--2 × as long as inflorescence, scalelike sheaths 2--3 cm; bracts becoming brownish when old, lanceolate, 2--3 cm, glabrous; bracteoles ca. 2 cm, membranous. Calyx ca. 2 cm, split on 1 side, glabrous. Corolla ivory white; tube ca. 2.7 cm; lobes lanceolate, ca. 1.8 cm. Labellum elliptic; lateral lobes reduced to rounded teeth or absent. Anther sessile, ca. 8 mm; connective appendage ca. 7 mm. Fl. Apr.

* Hong Kong.