Quassia sp. 'Moonee Creek', the Moonee quassia, is a shrub found in north eastern New South Wales, Australia. A rare plant, listed as endangered by extinction. However, it has yet to be formally named. It grows below eucalyptus forest, often in high rainfall areas. From the Coffs Harbour, Dorrigo and Grafton regions, mostly at lower altitudes. Known from 18 locations between Moonee Beach in the south, to McCraes Knob which is some 12 km east of the Clarence River in the north. It was originally known from an ash heap at Glenreagh, next to the Dorrigo railway line.