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Terrestrial herb, robust, geophyte, 0.4-1.0 m high; root tubers present. Leaves 3-6, cauline, sheathed, dashed with reddish stripes basally, lanceolate to narrowly ovate, imbricate. Inflorescence a dense spike, cylindrical. Flowers 15-35, resupinate, purple, lateral sepals and lip greenish yellow, texture like crystals. Sepals 12-18 mm long, median sepal galeate, horizontal; spur slender, cylindrical, horizontal, gradually decurved, 10-20 mm long. Lip 5-10 mm long, strap-shaped to obovate, decurved. Flowering time Sept.-Feb.
Flowers facing down, galea more or less purple on the outside, lateral sepals and inside of galea greenish silvery-white, lip and petals greenish, lip often with a large purple base, colours generally variable.
Petals 8–10 mm long, lorate, acute to acuminate, often with anther apical lobe which may be obscurely or distinctly 2-lobed, petals falcate with a 5 mm long basal anticous lobe flanking the stigma.
Terrestrial herb, up to 1 m high. Spur 10-20 mm long, straight or gradually decurved. Inflorescence with numerous resupinate flowers. Lip lorate to obovate. Flowers purple to silvery green.
Robust, tuberous geophyte to 1 m. Leaves cauline, imbricate, lanceolate. Flowers many in a dense raceme, purple and silvery green, spur 10-20 mm long, lateral sepals oblong, 12-16 mm long.
Rostellum lateral lobes erect, canaliculate, fused to the petals, central lobe a small fleshy body between the lateral lobe.
Spur from a horizontal conical base, gently or rarely sharply decurved, 1–2 cm long, cylindric, emarginate.
Leaves densely imbricate, lanceolate to narrowly ovate, acute to acuminate, shortly sheathing at the base.
Lateral sepals patent, 12–16 mm long, narrowly to broadly oblong, obtuse to acute.
Floral bracts lanceolate, acuminate, as tall as or overtopping the flowers.
Dorsal sepal deeply galeate, apiculate; galea 12–18 mm tall, 8–12 mm deep.
Inflorescence imbricate, robust, 15–40 cm long; flowers numerous.
Lip patent, 5–10 mm long, lorate to obovate, rounded, fleshy.
Terrestrial herb up to 1 m tall, perennating by tubers.
Stigma horizontal, equally tripulvinate.
Ovary 15–20 mm long, twisted.
Anther borne horizontally.
