"Eucalyptus gunnii, the cider gum or gunnii, is a species of flowering plant in the family Myrtaceae, endemic to Tasmania, occurring on the plains and slopes of the central plateaux to around 1100 metres, with isolated occurrences south of Hobart" (Wikipedia).
"E. gunnii is a large evergreen tree with peeling cream and brown bark. Juvenile foliage bright glaucous-blue, rounded; adult leaves elliptic or sickle-shaped, grey-green. Flowers white, in small clusters" (Royal Horticultural Society).