Flowering plant to 16 cm tall, stem leaves 3–5, loosely sheathing. Rosette leaves 5–10, ovate to elliptic, 0.5–2.5 cm long, 3–8 mm wide, shortly petiolate to nearly sessile, margins entire. Flowers 5–16, crowded, pale green with darker green lines, 10–13 mm long; galea curved throughout, suddenly decurved near the apex; dorsal sepal acute; lateral sepals deflexed, conjoined part broadly ovate in outline when flattened, 6–7 mm long, 6–7 mm wide, margins incurved, concave, united basally, free points broadly triangular, c. 3 mm long, parallel; petals asymmetrical, broadest towards the base. Labellum pale green with a dark green basal appendage; lamina obovate-oblong, c. 3 mm long, c. 2.5 mm wide; appendage c. 2 mm long, recurved. Flowers Oct.–Nov.
VVP, OtP, WaP, CVU, DunT. Endemic to Victoria where formerly widespread in basalt plains grassland north and west of Melbourne and now apparently confined to two sites, on stony rise country near Mortlake, and in Eucalyptus microcarpa grassy woodland near Bacchus Marsh. Soils are red-brown clay loams.
