Plants 250–80 tall. Free part of leaf to 150 x 3–5mm. Spike 30–8 long, 6–20-flowered. Ovary shortly stalked, green, shiny. Flowers well spaced, unscented, 8–9.5 x 6–9mm, brownish-green, petals white and purplish, labellum white or pink, callus green (white or pink at apex). Dorsal sepal 5–7 x 3–3.5mm, incurved. Lateral sepals fused, base humped, obliquely erect behind labellum, each sepal 5–6 x 2mm. Petals 6–7 x 1–1.3mm, incurved to spreading. Labellum sessile, elliptic-oblong, 7–9 x 3–3.5mm, sharply recurved near middle, margins weakly wavy/crinkled. Callus ending just beyond labellum bend, apex truncate or notched.
Restricted to montane areas, growing beside small streams in hummocks of sphagnum moss and on moist to wet grassy flats in boggy or peaty soil, rarely among grass and shrubs in snowgum woodland; tallest specimens often protrude above top of shrubs.
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