Leaf linear-lanceolate, 150–300 × 10–20 mm, hairy, often partly withered at flowering time. Flower stem 300–600 mm tall, 1-or 2-flowered. Flowers 50–60 mm across, pale greenish yellow; sepals and petals with brownish yellow, thread-like to relatively thick, glandular tips (no clubs). Dorsal sepal erect, 90–130 × 4–4.5 mm. Lateral sepals stiffly spreading to obliquely decurved, 100–150 × 7–10 mm, divergent. Petals spreading, 75–95 × 5–6.5 mm. Labellum 15–23 × 10–12 mm, green to yellowish, often with a maroon apex; margins with numerous reddish or yellowish teeth to 3.5 mm long; tip recurved. Basal calli 6–8, c. 2.3 mm long, erect. Lamina calli to 2 mm long, yellow or red, in 4 or 6 rows onto base of midlobe. Column 12–14 × 5–6 mm, yellowish with red markings; basal glands c. 2 mm long, ovoid, yellow with a red basal stalk.
Highly localised in scattered populations from the coast to foothills; growing among grass on slopes in tall, moist forest in freely draining, humus-rich loams; also in drier open forest and heathy forest in sands and clay loams.
Home