Owenia acidula, commonly known as Emu apple, is small or medium-sized tree of outback woodlands native to Australia

Australia

Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

. It may grow to ten metres tall.

The pinnate

Pinnate

Pinnate is a term used to describe feather-like or multi-divided features arising from both sides of a common axis in plant or animal structures, and comes from the Latin word pinna meaning "feather", "wing", or "fin". A similar term is pectinate, which refers to a comb-like arrangement of parts...

 leaves are bright green and shiny, with leaflets 2-5 cm long. Broken twigs ooze a milky sap. The edible fruit

Fruit

In broad terms, a fruit is a structure of a plant that contains its seeds.The term has different meanings dependent on context. In non-technical usage, such as food preparation, fruit normally means the fleshy seed-associated structures of certain plants that are sweet and edible in the raw state,...

 is purplish-red with paler speckles, 2-4 cm wide with a large stone-like seed.

Uses

The fruit pulp is an Aboriginal

Australian Aborigines

Australian Aborigines , also called Aboriginal Australians, from the latin ab originem , are people who are indigenous to most of the Australian continentthat is, to mainland Australia and the island of Tasmania...

 bushfood

Bushfood

Bushfood traditionally relates to any food native to Australia and used as sustenance by the original inhabitants, the Australian Aborigines, but it is a reference to any native fauna/flora that is used for culinary and/or medicinal purposes regardless of which continent or culture it originates...

 and apparently causes hallucinations. They ripen after coming off the tree, and have a sour flavor.