Dicranoloma billardierei is a lustrous green or gold brown coloured plant that mostly forms cushions up to 80 cm (31 in) in diameter.

The cross section has 3 to 4 layers of cortical cells and a central stand, with rhizoids in the leaf axils.

[4][2] The costa is narrow and wide in the middle of the leaf with the abaxial surface bearing short spines.

[4][2] This moss often forms a mosaic with Dicranoloma robustum and is found any from sea level up to approximately 1,250 m (4,100 ft).

[4][2] Dicranoloma billardierei normally consists of a main stem with multiple lateral branches and commonly at each apex a perichaetium was present.

[5] This perichaetium is a cluster of leaves surrounding the sex organs of the moss and forming an enveloping sheath.

[5] Reproductive cycle events may be influenced by environmental factors such as rainfall, light and temperature.

In moss species such as Dicranoloma, water retention and uptake is enhanced through a covering of rhizoids on the stems and is also liked to growth form.

Mosses provide invertebrates camouflage, protection, shelter, food and a place to deposit their eggs.

[6] Invertebrates such as mites are common on the stems of Dicranoloma, as well as species of Gastropa, Thysanoptera, and Coleoptera all of which feed on the moss.

[6] The remains of bacteria, algae, or dead and decaying material found within moss also likely provides a food sources for some species.