Eucalyptus viminalis, Manna Gum, also known as White Gum, Ribbon Gum or Viminalis is an Australian eucalypt.
It is a straight, erect tree to 50 m, with rough bark on the trunk and base of larger branches, it's upper bark peels away in long "ribbons" which can collect on the branches and surrounding ground . Occasionally it can attain very large sizes. The tallest currently know specimen is located in northeast Tasmania and is 89 m tall .
E. viminalis is widely distributed in the cooler areas of Australia where the leaves are the favoured food of Koalas . Sap has a 5-15% sugar content which makes it an essential part of the energy budget for arboreal or tree dwelling marsupial mammals like Yellow-bellied, Sugar and other gliders.