Gillian Ware shares a photo gallery of rainbow eucalyptus (Eucalyptus deglupta) at her Tree A. Ware blog.
Apart from being a magic tree, it has two magic common names: Rainbow Eucalyptus and Painted Bark Eucalyptus, both descriptive of its multicoloured bark. Like other Eucalyptus’ it sheds its bark— but in this case the lower layer is a vivid green. As different layers mature, they change colour— to orange, purples and blues, dark maroon being the final colour— resulting in fantastic paint brushstroke-like streaks.

Grand link.
Thanks, Treeblogging, for sharing this post of mine…