Terminalia ferdinandiana is a slender, medium-sized tree with small creamy white flowers. Native to Australia, it produces a yellow green fruit commonly called kakadu plum. It also goes by the name billygoat plum, salty plum and mador. The fruit is known to be one of the highest sources of natural vitamin C. As a food, kakadu plum is eaten raw or made into a jam. Kakadu plum is also used as a traditional medicine. The inner bark of the tree is applied to a variety of skin disorders such as wounds.

Significant anti-oxidant and anti-inflammatory effects in vitro of kakadu plum extract have been studied. Compared to blueberry, kakadu plum extract showed about 3 and 2-fold higher activity than blueberry in the ferric ion reducing anti-oxidant power (FRAP) and oxygen radical absorbance capacity (ORAC-H) assays, respectively. Bioassay guided fraction of kakadu plum extract showed anti-inflammatory effect through the inhibition of COX-2 and iNOS expression in LPS-activated murine macrophages.