The Castlereagh Scribbly Gum and Agnes Banks Woodlands is an endangered sclerophyll low-woodland and shrubland community found in western Sydney, New South Wales, Australia.

[2] Having low nutrient soils, it sits on wind-blown sand over the Tertiary Alluvium deposits from the Hawkesbury-Nepean River system, in areas that receives 700–900 mm annual rainfall.

[2] Ground layer includes Themeda triandra, Entolasia stricta, Cyathochaeta diandra, Dianella revoluta, Lepidosperma urophorum, Stylidium graminifolium, Lepyrodia scariosa, Mitrasacme polymorpha, Trachymene incisa and Laxmannia gracilis.

[3] Mammals include Ctenotus taeniolatus, Tiliqua scincoides, Petaurus breviceps, Myotis macropus and Trichosurus vulpecula, with frogs such as Litoria verreauxii, Crinia signifera and Limnodynastes tasmaniensis.

[3] Birds include Smicrornis brevirostris, Acanthiza reguloides and Acanthiza nana, Petrochelidon nigricans, Artamus cyanopterus, Colluricincla harmonica, Pachycephala rufiventris and Pachycephala pectoralis, Daphoenositta chrysoptera, Melanodryas cucullata, Pardalotus striatus and Pardalotus punctatus, Lichenostomus fuscus, Tyto alba, Entomyzon cyanotis and the rare Petroica goodenovii.