Bush tucker refers to a wide variety of plant and animal foods native to the Australian bush: bush fruits such as kakadu plums, finger limes and desert quandongs; fish and shellfish of Australia's saltwater river systems; and bush meats including emu, crocodile and kangaroo. Many of these are still seasonally hunted and gathered by Indigenous Australians, and are undergoing a renaissance of interest on contemporary Australian menus. The macadamia nut is the most famous bushfood plant harvested and sold in large quantities.