It has a single hollow, onion-like leaf and up to thirty five small greenish-yellow, almost globe-shaped flowers.

[2][3][4] Microtis globula was first formally described in 1984 by Robert John Bates from a specimen collected near Walpole and the description was published in Journal of the Adelaide Botanic Gardens.

[5] The specific epithet (globula) is from the Latin word "globulus" meaning "a little ball" or "globule", referring to the shape of the flowers.

[2][6] The globular mignonette orchid grows in peaty, winter-wet areas between Albany and Northcliffe in the Jarrah Forest and Warren biogeographic regions.

[2][3][7] Microtis globula is classified as "Priority Four" by the Government of Western Australia Department of Parks and Wildlife,[7] meaning that is rare or near threatened.