Oreobolus oxycarpus subsp. oxycarpus

Small, mat-forming herbs to 10 cm high. Leaves apparently spirally arranged; sheaths with rounded auricles; pseudopetiole slightly concave, 5–17 mm long; blade 7–26 mm long, 0.5–1 mm wide, densely covered with stomata adaxially and with 2 faint ribs or ribs absent; apex obtuse. Inflorescence with 1–3 spikelets. Spikelets 4–12 mm long; glumes 3, whitish with green leaf-like apex to pale brown, occasionally tinged dark red-brown; lowest glume 3.7–10 mm long; innermost glume 2.5–5 mm long; hypogynous scales straw-coloured; anthers 1–3 mm long. Nut ovoid, with long-tapering conical apex often collapsing at maturity, yellow-brown or with apex blackish, 1.8–2.9 mm long, 0.7–1.1 mm diam. Flowers summer.