Pterostylis lustra

Flowering plant to 20 cm tall, stem smooth. Rosette leaves 3–5, ovate-lanceolate to elliptic, 2–6 cm long 0.8–1.5 cm wide, scattered on the basal part of the stem, sessile, margins entire. Flower 3–4.5 cm long, erect or semi-nodding, dark green and white; galea apex more or less flat to semi-erect; dorsal sepal acuminate, slightly longer than the petals; lateral sepals erect, loosely embracing the galea leaving a lateral gap, sinus deeply v-shaped when viewed from the front, protruding in a shallow curve when viewed from the side, free points linear-tapered, 2–3 cm long, erect or recurved; petals narrow, subacute. Labellum narrowly ovate-lanceolate, 15–25 mm long, 3–3.5 mm wide, brown, curved forwards in the distal half, subacute to obtuse, distal third protruding from the sinus in the set position. Flowers Nov.–Feb.