Johnsonia acaulis is a plant in the family Asphodelaceae and is endemic to the south-west of Western Australia.

It is a rhizomatous, tufted, or grass-like perennial with white, pink or green flowers.

Johnsonia acaulis is a rhizomatous, tufted, perennial herb with grass-like leaves 55–165 mm (2.2–6.5 in) long.

The perianth is 3–4 mm (0.12–0.16 in) long and white, pink or green, and the sepals and wider than the petals.

[6] This species occurs between Israelite Bay, Lake Grace and Perth in the Esperance Plains, Geraldton Sandplains, Jarrah Forest, Mallee, Swan Coastal Plain and Warren biogeographic regions of Western Australia.