Davidson Plum / Ooray

Davidson Plum is a rare Australian rainforest fruit used by Aboriginal communities of North Queensland as food and medicine. It contains one of the highest anthocyanin concentrations of any fruit — up to 1,036 mg per 100 g, primarily cyanidin-3-glucoside and cyanidin-3-rutinoside, compared to 200–400 mg in blueberries. These same anthocyanins drive anti-cancer activity: inducing apoptosis in colon cancer cells, inhibiting cancer cell migration, and suppressing NF-κB inflammatory signalling. The fruit also contains significant ellagic acid and quercetin. Research from the University of Queensland and Queensland Department of Primary Industries has characterised the phytochemical profile in detail, with early anti-cancer studies showing striking cytotoxicity against colon cancer cells at achievable concentrations. Aboriginal communities used Davidson plum for skin healing, wound treatment, and internal ailments — the deep purple pigment was also used ceremonially.