Plants 28-42 cm tall. Rootstock tuberous, ovoid-fusiform, tapering at base, 2.5-3 × 0.8-1.4 cm. Stem erect, with 1 or 2 tubular sheaths at base, 2-leaved. Leaves basal, subopposite, spatulate-elliptic, oblong, or elliptic, 9-12 × 1.8-3.5 cm, gradually contracted at base, apex obtuse. Peduncle slender to robust, with 2-4 scattered, lanceolate bracts; rachis 9-19 cm, laxly to subdensely 7-17-flowered; floral bracts lanceolate, 15-20 mm, basal ones exceeding ovary. Flowers fragrant, white, greenish white, or green; pedicel and ovary arcuate, cylindric, 14-15 mm. Dorsal sepal erect and forming a hood with petals, ovate to broadly ovate, cymbiform, 5.5-6 × 4-4.5 mm, glabrous, apex obtuse; lateral sepals spreading, ovate-lanceolate, oblique, 6-7 × 3.5-4 mm, glabrous, apex subacute. Petals linear-lanceolate, oblique, 5.5-6 × ca. 1 mm, apex acute; lip spreading, ligulate, 9-10 × 1-1.5 mm, thickened, entire, apex obtuse; spur pendulous, cylindric, slender, 20-25 × 1.5-1.8 mm, apex subacute. Column stout; staminodes conspicuous; anther locules slightly divergent; pollinia ellipsoid, with long caudicles and suborbicular viscidia; rostellum belt-shaped; stigma lobes confluent, concave, lying directly below rostellum. Fl. Jul-Aug, fr. Aug-Sep. 2n = 42.
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An orchid. It grows 28-42 cm tall. The rootstock forms tubers. They are oval and taper at the base. They are 3 cm long by 1 cm wide. The stem is erect with 1 or 2 tubes shaped sheaths at the base. The leaves are at the base and spoon shaped or narrowly oval. They are 9-12 cm long by 2-4 cm wide. They contract at the base. The flowers are white or greenish white and have a scent.
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