VOLUME 2: Vegetation Community Profiles - Coffs Harbour City ...

CH_FrW09COASTAL WALLUM SWAMP MAHOGANY -SIEBER’S PAPERBARK FORESTSCIENTIFIC NAME Swamp Mahogany (Eucalyptus robusta) – Sieber’sPaperbark (Melaleuca sieberi) Forested Wetland on sandy soilsSTATEWIDE CLASS Freshwater Wetlands – Coastal Heath Swamps(Keith 2006)CH_FrW09PLANT COMMUNITY TYPE Swamp Mahogany – Melaleuca sieberishrub/sedge swamp forest on low lying sandy areas, South EasternQueensland Bioregion and NSW North Coast Bioregion (NSW700-334)DescriptionThis community has an emergent to open cover of tall Swamp Mahogany (Eucalyptus robusta). Other canopyspecies that are occasionally abundant include Scribbly Gum (Eucalyptus signata), Red Mahogany (Eucalyptusresinifera subsp. hemilampra) Broad-leaved Paperbark (Melaleuca quinquenervia) and Swamp Box (Lophostemonsuaveolens). There is a mid to lower stratum of heathland and/or shrubland with open to dense cover of Sieber’sPaperbark (Melaleuca sieberi), Snow-in-Summer (Melaleuca linariifolia) and Weeping Baeckea (Baeckea frutescens).A second lower shrub layer contains Fern-leaved Banksia (Banksia oblongifolia), Saw Sedge (Gahnia sieberiana),Hairpin Banksia (Banksia spinulosa var. collina) and Wallum Bottlebrush (Callistemon pachyphyllus). In the groundlayer, Horned Sedge (Ptilothrix deusta), Hairy Guinea Flower (Hibbertia vestita), Jointed Twig Rush (Baumeaarticulata), Wiry Panic (Entolasia stricta) Kangaroo Grass (Themeda australis) and Grass Tree (Xanthorrhoea fulva) arethe most dominant species.This community has a scattered distribution on sandy Pleistocene backbarrier sands in areas where there appearsto be some clay input into the soil from nearby metasedimentary hills. It is most common in the northern sectionof Bongil Bongil National Park and also in the vicinity of Arrawarra township and Arrawarra Headland.Page 368Vegetation Mapping of the Coffs Harbour Local Government Area