drops in western regions and extends from . Gidgee, with a maximum height of approximately is somewhat smaller than brigalow which can attain heights of . In the north-western regions black gidgee (A. argyrodendron) replaces brigalow in many areas, while in Central-Western districts Boree (A. tephrina) forms woodlands and shrublands, frequently on cracking clay soils and often in association with A. cambagei. Georgina gidgee (A. georginae) woodlands are found in more arid regions in the rainfall belt. In New South Wales it is found from around Roto in the south, to around Hungerford in the west and Willow Tree in the east along the Great Dividing Range. In Queensland it is found as far north as Townsville. Taxonomy The species was first formally described by the botanist George Bentham in 1864 as part of the work Flora Australiensis. It was reclassified as Racosperma harpophyllum by Leslie Pedley and transferred back the genus Acacia in 2001. The type specimen was collected from around Rockhampton. The specific epithet is in reference to the falcate shape of the phyllodes on the tree. Response to fire Species associated with these brigalow communities generally have a good capacity for re-sprouting following fire, and brigalow itself sprouts freely from the butt, roots and living stems in response to fire damage. Both gidgee and blackwood, in contrast, have a limited capacity to resprout following fire damage. A notable exception to the fire tolerance of brigalow communities occurs in what are referred to as softwood scrubs, which are dense communities of brigalow and a range of particularly fire-sensitive species. Fire in any brigalow or gidgee woodland would be a rare event under natural circumstances, since pasture is at best sparse in these communities, consisting of Chloris, Paspalidium, Dicanthium, Sporobolus and Eragrostis species. See also List of Acacia species References harpophylla Flora of Queensland Flora of New South Wales Fabales of Australia Drought-tolerant trees Trees of Australia Bushfood Plants described in 1864 Taxa named by Ferdinand von Mueller