It is a common and widespread, slender ground orchid with a single leaf and up to fifteen small white and greenish flowers with reddish or brownish markings and a hairy labellum.

[2][3][4][5] Eriochilus dilatatus was first formally described in 1840 by John Lindley and the description was published in A Sketch of the Vegetation of the Swan River Colony.

[1] The specific epithet (dilatatus) is a Latin word meaning "spread out", "enlarge", or "extend",[6] referring to the broad labellum and lateral sepals.

[4] There are six subspecies: All bunny orchids are pollinated by small native bees, attracted to nectar at the base of the labellum.

[2] Eriochilus species are generally easily grown in pots in a bushhouse or cool glasshouse.