Microtis unifolia

Flowering stem 10–70 cm tall, slender to robust, fleshy. Leaf erect or drooping, 10–80 cm long, hollow; sheath opening well below inflorescence. Flowers 10–100, green or yellow-green, often lightly scented, spreading, in moderately to quite dense spike-like raceme 3–13 cm long; ovary obovoid to almost ellipsoid, 3–4 mm long, plump, on relatively stout, short pedicel, standing out from stem; dorsal sepal ovate to circular, 2–4 mm long, hooded, margin evenly rounded, apex obtuse; lateral sepals linear-oblong to ovate-lanceolate, shorter than dorsal sepal, almost acute, spreading, recurved to tightly revolute; petals lanceolate and sickle-shaped or somewhat ovate-lanceolate, shorter than dorsal sepal, partly concealed by dorsal sepal. Labellum pressed against ovary, more or less oblong, 2–2.5 mm long; margins minutely notched or wrinkled; apex notched; lamina with saddle-shaped basal calli, flattened rather than convex, and variously shaped apical to medial callus. Column with distinct ovate auricles. Flowers Oct.–Jan.