Plants 400–80 tall. Free part of leaf to 250 x 7–10mm. Spike 90–15 long, 10–20-flowered. Ovary shortly stalked, green, shiny. Flowers moderately crowded, unscented, 15–20 x 14–18mm, greenish to brownish, labellum white, callus green to yellowish. Dorsal sepal 9.5–11 x 4mm. Lateral sepals free, 10–12 x 2.4mm, widely divergent. Petals narrowly linear, 10–12 x 1.5mm, spreading, with brown central band. Labellum sessile, narrowly oblong, 12–14 x 5–5.5mm, base humped, sharply folded back on itself near middle, upper portion nearly touching lower, distal margins wavy/crinkled. Callus raised, fleshy, channelled, ending just beyond labellum bend, apex notched, papillate.
Highly localised growing in grassy areas of tall eucalypt forest dominated by Eucalyptus delegatensis in freely draining, brown, humus-rich loam.
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