Microtis R.Br.
Flowers resupinate. Dorsal sepal hooded Microtis
Upper surface of the labellum with 2 callosities at the base and 1 at the apex
Petals spreading below dorsal sepal. Labellum at least ⅔ as long as ovary, 3–5 mm long, emarginate, margins wavy. Flowers well spaced, yellowish-green to bright green. Petals more than 2 mm long. Lateral sepals spreading, recurved or tightly revolute. Plant up to 50 cm high (usually much less). Widespread. Fl. Oct.–Nov. Scented Onion Orchid Microtis rara