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Inflorescence short and very densely several-to many-flowered; scape stout, the lower part covered with overlapping sheaths.
Leaves about 3, erect, up to 90 × 1.5 cm, linear, acuminate, plicate, partly to fully developed at flowering time.
Flowers not opening wide, pale to bright yellow, the crests on the lip deeper yellow.
Perennating organs subterranean, tuberous, forming chains.
Sepals c. 20 × 4 mm, narrowly oblong to elliptic, acute.
Bracts up to 30 × 2 mm, lanceolate, long acuminate.
Spur 4–7 mm long, cylindrical, very slender.
Petals similar but smaller, c. 15 × 3 mm.
Pedicel and ovary slender, 12–15 mm long.
Terrestrial herb 30–100 cm tall.
Column 6–8 mm long.
