The tree is dioecious and large, reaching up to 75 metres (246 ft) in height and up to 4 m (13 ft) diameter above the buttresses.[7] A pioneer species, it regenerates quickly in disturbed habitats such as logged forest and previously cultivated land. It has been known to grow as much as 25 m (82 ft) in height and up to 47 cm (19 in) diameter at breast height (DBH) in just four years.[8][9] Also, like other pioneer species, it is relatively short lived; even the emergent titans rarely exceeding 85 years of age.[10] It also has noteworthy buttresses; up to 6 m (20 ft) high by up to 15 m (49 ft) in length.[11] On Bougainville the buttresses take a different form; higher and narrower, up to 16 m (52 ft) in height while only 5.5 m (18 ft) length.[12]
^Foreman, D.B. (1971). "A Checklist of the Vascular Plants of Bougainville with Descriptions of Some Common Forest Trees". Papua New Guinea Dept. Of Forests Bot. Bulletin. 5: 146.
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