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Flowers c. 15 mm in diameter, bright red, the posterior petal lobes and the inside of the galea usually yellow with bright red blotches, the anther purple to yellow.
Dorsal sepal erect, 7.5–11.5 × 5–8 mm, rhomboid, subacute; galea usually narrowly oblong, subacute, c. 2 mm deep.
Sterile shoots to 8 cm tall; leaves conduplicate, 20 × 1–2.5 cm, linear to narrowly oblanceolate, acuminate.
Fertile shoots 30–70 cm tall; leaves imbricate, 5–12 cm long, narrowly lanceolate, acuminate.
Lateral sepals suboblique, 9–10(12) mm long, ovate-oblong, obtuse to rarely apiculate.
Floral bracts lanceolate, acuminate, somewhat longer than the ovaries.
Terrestrial herb with separate fertile and sterile shoots.
Inflorescence dense, 7–17 cm long, c. 30-flowered.
Spur pendent, 8–13 mm long, slender, cylindrical.
Lip pendent, 9–10 mm long, linear.
Anther erect, c. 4 mm long.
Stigma sessile, 3-lobed.
Ovary 1.5–2 cm long.
