Flowering plant slender, 10–20 cm tall, often in densely crowded tufts of up to 30 plants. Leaves mostly 3–7, linear, 5–10 cm long, in a loose, erect tussock. Flowers 1 or 2, semi-erect to porrect, often not opening widely, bright yellow, with a few short dark striations on the base of the dorsal sepal and sometimes also the labellum; pedicel (excluding ovary) 1–2.5 cm long, very slender, partly enclosed within bract; dorsal sepal obliquely erect or porrect, ovate, 7–12 mm long; lateral sepals obliquely deflexed, usually parallel, linear-oblanceolate, 14–18 mm long, green; petals incurved to spreading, 8–12 mm long, claw green, lamina ovate to ovate-elliptic. Labellum porrect or obliquely deflexed, 10–17 mm long, 3-lobed; lateral lobes small, oblong-cuneate, outer margins toothed; mid-lobe flat or shallowly concave, c. 3 times as long as the lateral lobes, ovate to broadly ovate, narrowed at base, with 2 widely separated, pubescent, longitudinal ridges extending shortly beyond base, a single, less distinct ridge continuing nearly to apex. Column wings about same height as anther. Flowers Sep.–Oct.
Wim, VVP, GGr, DunT. Extremely rare, mostly on basalt plains grasslands of western Victoria.
