This creeping, terrestrial fern grows to a height of between 10 and 25 centimetres. Its leaves, or fronds, are single, scaly and green and are deeply cut almost to the central axis. Spores are produced in large, spherical, dot-like clusters on the undersides of the triangular leaflets. Spore clusters are formed in two rows.
This evergreen fern grows in rock crevices and on old walls. It prefers sandy soils and full sun or dappled shade.