Along the coastal cliff top Many-flowered Mat-rush is found as a component of Coastal Heathland. It has a tussock-forming growth habit; usually slender but occasionally robust.
Leaves are held stiffly erect, greyish-green, flat or slightly curved on one side and about 5mm in width and roughly 60cm in length.
Flowering occurs in Spring; mainly yellow colouring with outer purplish segments. Flowers are arranged in whorls along the flowering stem. Like all Lomandras male and female flowers are born on separate plants.
Male flowers are bell-shaped, weeping and on pedicels (stem of a flower) whilst the female flowers are slightly larger and sessile (without a flower stem).
Food plant for native caterpillars and butterflies.
Flora of Melbourne also notes their role as habitat for many animals as well as birds.