This area is regionally significant because of the diverse species of flora and the connection to tother regionally significant forest reserves in Greenbank, and as a vital component of the Flinders Peak to coastal ecosystems system of fauna habitat ranges.

There were interesting variations in geology and soils, with the most predominant being sandstone derived soils, that have influenced the diversity of forest types including the Sandy Creek and associated wetland complexes. These soils vary in profiles from those adjoining Sandy Creek, which are slightly elevated and have very deep sand top soils and underlying medium-heavy clay soils, to shallow poorly drained sandy-clay top soils.

The geological influences on the more elevated soils, indicate their lateritic origins, with a mixture of metamorphosed sediments and medium clay subsoils, which have produced a mosaic pattern of vegetation types, ranging from

• Dry sclerophyll open forests of spotted gum/ironbark and stringybarks
• Mixed eucalypt/swamp box with well-developed melaleuca nodosa understorey,
• Open forest of forest red gum/E. seeana, grey ironbark, pink bloodwoods and angophora (rusty gum)
• Scribbly gum forests with wallum-heath on sandy soils, and
• Sandy Creek wetland and riparian vegetation.

The following plant alliances are listed as `Of concern ecosystems' Sattler & Williams

12.9/10/12 E. seeana, Corymbia intermedia, Corymbia racemosa, Angophora leiocarpa on sedimentary rocks , and

12.9/10.10 Melaleuca nodosa woodland/ low open forest

The EPA notes that these Narrow leaf forest redgum and scribbly gums forests south west of Brisbane are very poorly mapped, and have no representation in protected areas in SEQ. This fact is a fundamental concern for conservationists and should also ring alarm bells for both state government and all local councils.

These forest complexes are also regionally significant for the provision of a range of nesting sites for diverse fauna, including log hollows, tree and branch hollows, termite nests, standing dead trees, with abundant food resources of flowers and foliage. These are favourable to species of regional importance, including koala and gliders; but also provide essential shelter and nesting sites for raptors, possums, owls, kookaburra, kingfisher, reptiles and ground fauna.

Among the more notable plant species on site include food resource trees for koala and gliders are E. tereticornis, E. seeana, E. carnea, E. siderophloia, Corymbia intermedia, C. trachyphloia, Corymbia racemosa, Banksia integrifolia, Hakea florulenta, Melaleuca nodosa, M. linariifloia, M. quinquenervuia, & Callistemon salignus. Other notable plants include Baeckea stenophylla, , Boronia rosmarinifolia, Xanthorrhoea spp., Gompholobium latifolium, Lomatia silaifolia, Leucopogon juniperinus, Acrotriche aggregata and Monotoca scoparia.