Eucalyptus deglupta, commonly called Mindanao gum or rainbow eucalyptus, is a very large, fast-growing, broadleaved evergreen tree that is native to moist humid tropical forested areas with high rainfall in New Guinea, Indonesia and the Philippine Islands (Island of Mindanao). It is the only eucalyptus tree that is indigenous to the northern hemisphere. In its native habitat, it will mature to as much as 250' tall with a trunk diameter of 6'. Outside its native habitat, it will typically grow much shorter (to 100-125' tall). It is perhaps best noted for its smooth orange-tinted trunk bark which peels in summer to reveal a unique and sometimes stunning multi-colored bark (as described by the common name of rainbow eucalyptus) consisting of streaks of pale green, red, orange, gray and purple-brown. Outside tropical settings, the bark is typically much less colorful. Acuminate, lance-shaped leaves (to 6" long) are aromatic when crushed. Tiny white flowers in axillary or terminal compound inflorescences (panicles of 7-flowered umbels) bloom at various times during the year depending upon location. Trees are a source of hardwood timber.