Plants 300–40 tall. Free part of leaf to 200 x 4–6mm. Spike 60–9 long, 10–25-flowered. Ovary sessile, green, shiny. Flowers crowded, scented, 16–20 x 17–25mm, green to brownish, petals white, labellum white, callus greenish-yellow. Dorsal sepal 9–12 x 4–4.5mm, decurved. Lateral sepals free, 9–12 x 2–2.5mm, widely divergent. Petals 10–12 x 3mm, wider towards apex, porrect, widely spreading, margins wavy. Labellum sessile, ovate-oblong, 9–12 x 5.5–6mm, sharply recurved near middle, distal margins strongly wavy/crinkled. Callus fleshy, ending just beyond labellum bend, apex square or notched.
Known from only a few small populations, growing in remnant native grassland in freely draining basaltic loam, sometimes in shallow soil over rock, in lowest rainfall region of the state.
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