Diuris ochroma D.L.Jones

Leaves 3–5, tufted, 50–200 × 3–5 mm, straight. Flower stem 100–300 mm, 1–3-flowered. Flowers semi-erect to semi-nodding, 25–30 mm across, cream with purplish striations, sometimes with red stains on labellum (rarely yellowish with no markings). Dorsal sepal obliquely erect, 10–13 × 7–9 mm. Lateral sepals obliquely deflexed below labellum, 14–20 × 1.5–3.5 mm. Petals incurved, spreading or drooping; stalk 6–8.5 mm long, purple, expanded into blade; blade 7–9 × 4–5 mm. Labellum 13–16 mm long; lateral lobes 2.5–3 × 1.5 mm, margins densely papillate; midlobe broadly ovate, 10–13 × 8.5–11 mm, basal margins papillate. Callus ridges 2–4, 7–10 mm long, densely papillate, with fainter radiating lateral ridges.

Highly localised and uncommon; growing in subalpine herb fields and on grassy slopes covered with snow grass and flats and terraces near streams in well-structured brown loam; kangaroo grass is dominant at Wadbilliga and in the Vic. localities.