Microtis pulchella is a terrestrial,
perennial,
deciduous,
herb with an underground
tuber and a single erect, smooth, tubular leaf long and wide. Between five and twenty five thinly textured, white flowers are arranged along a flowering stem long, reaching to a height of . The flowers are lightly perfumed, long and wide and droop as they age. The
dorsal sepal is egg-shaped, long, about wide and flat or slightly concave. The
lateral sepals are lance-shaped to egg-shaped, long, about wide and spread apart. The
petals are lance-shaped, about long, wide and curved. The
labellum is more or less oval, long, wide with slightly wavy or toothed edges. There are two raised, dark green
calli in the centre of the labellum. Flowering occurs from November to January but only after fire the previous summer. Non-flowering plants sometimes produce a thread-like leaf long. ==Taxonomy and naming==