Eucalyptus gregsoniana, Wolgan Snow gum and also Mallee Snow Gum is a mallee that is found in the highlands of New South Wales Located in the Blue Mountains, Budawang Range and south of Braidwood in New South Wales. It can grow to 5 metres. With bark smooth throughout, white or grey, shedding in long ribbons to shedding in short ribbons with green branchlets. Adult leaves are alternate, lanceolate, falcate, acute, oblique or basally tapered, glossy, grey-green, thick, concolorous, 7–11 cm long, 1.2–2.5 mm wide. White or cream flowers appear in summer in clusters of 7.