Rainbow Eucalyptus Trees in Kailua, Hawaii

Eucalyptus deglupta is a tall tree, commonly known as the rainbow eucalyptus. It is the only Eucalyptus species found naturally in New Britain, New Guinea, Ceram, Sulawesi and Mindanao. The unique multi-coloured bark is the most distinctive feature of the tree. Patches of outer bark are shed annually at different times showing a bright green inner bark. This then darkens and matures to give blue, purple, orange and then maroon tones.
source by http://www.wonderslist.com/10-amazing-things-in-nature/