There are six species of Lomandras that are native to Tamborine Mountain; multiple species of Lomandra are present in each of the 10 Regional Ecosystems (RE) surveyed and described in Tamborine Mountain.

These communities are cool sub-tropical rainforest; tall, open forest; vine thicket or gorge rainforest; dry rainforest; tall, open forest on the eastern escarpment; tall open forest on ridges of the eastern escarpment; a grassy open forest of the eastern escarpment; heathy open forest of the western escarpment; heathy open forest on rhyolite on the southern escarpment; open forest with rainforest understorey on the southern escarpment. The presence of Lomandra as understory plants in this variety of local ecosystems reflects their adaptability.

Lomandras are flowering plants (angiosperms) that have seeds that contain only one embryonic leaf and so are part of the monocot group of flowering plants. They are perennial herbaceous plants commonly known as mat rushes. There are around 50 species found throughout Australia and they survive and flourish in a wide variety of environments, from rainforest and wetlands to arid and montane areas.

Lomandras have long, narrow, blade-like leaves arising from a central stemless base and have thick woody rhizomes and fibrous roots. They are dioecious and produce male and female flowers on different plants, female flowers may be spikier than male flowers. The flowers are often sweetly scented and rich in nectar. Fruiting occurs after flowering.

Aboriginal people used Lomandras as a source of materials for weaving nets and baskets as well as utilising different parts of the plant for food and medicine.

Lomandras provide food and habitat for native fauna. Flowers are pollinated by beetles, nectar is harvested by bees, ants harvest and distribute seeds, leaves are food for butterfly larvae. The benefit of the insect population, in turn, flows to birds, frogs and other animals that feed on insects. Larger Lomandra specimens provide shelter and protection for many creatures. Seeds and fruit provide food sources for various species of insects, birds, reptiles and mammals.

Lomandras are widely planted natives, they are tolerant of drought and frost, handle pollution, many are fire retardant, their fibrous root systems effectively stabilise slopes and riparian areas, all with minimal ongoing maintenance and in addition, they are resilient in excluding invasive weed species.

As a hardy understorey plant, Lomandras can provide valuable habitat as part of a vegetation layer approach to improve biodiversity in public spaces and domestic gardens.