The reserve features various forest types, including stands of sub tropical rainforest of which the large rosewood, yellow carabeen and small leaf fig are particularly noteworthy.

Boorganna Nature Reserve was proposed, but rejected for inclusion on the UNESCO World Heritage, due to being geographically isolated from other rainforests in the group.

The reserve lies to the south of the Oxley Highway, enabling access via Port Macquarie and Tamworth.

Such as a bats, wallabies, possums, gliders, spotted quoll, platypus, bandicoots, pademelons, bush rats, snakes, lizards and antechinus.

However, a vast number of insects, arachnids, molluscs, worms and other small creatures live in the rainforest.

Several species grow to great height and a broad trunk diameter, such as yellow carabeen, small leaf fig, Moreton Bay fig, rosewood, black booyong, giant stinging tree, pigeonberry ash, brush box and silver quandong.

[8] Antarctic Beech has been recorded at four nearby sites in the Comboyne area, growing in cool stream side rainforests at elevations ranging from 570 to 630 metres above sea level.

[2] Where the soil is shallow, and conditions are exposed to winds and fire is infrequent, dry rainforest occurs.

In the wetter areas are Sydney blue gum, brush box, tallowwood, and New England blackbutt.

The drier eucalyptus areas are subject to higher winds, frequent fires and shallow less fertile soils.

[2] At Boorganna Nature Reserve fungi is noticeable and often colourful and spectacular, particularly after rain in the autumn.