Davidsonia is a genus containing three rainforest

Rainforest

Rainforests are forests characterized by high rainfall, with definitions based on a minimum normal annual rainfall of 1750-2000 mm...

 tree species, that are commonly known as the Davidson or Davidson's Plum. The fruits superficially resemble the European plum, but are not closely related. All species have an edible sour fruit with burgundy coloured flesh and are highly regarded as gourmet 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...

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• Davidsonia jerseyana
  Davidsonia jerseyana
  Davidsonia jerseyana, also known as Davidson's Plum or Mullumbimby Plum, is a small, slender subtropical rainforest tree up to 10 meters high. The hairy leaves are compound and 35 - 60 cm long, with 11 - 17 leaflets. It is endemic to a restricted area of northern New South Wales on the east coast...
  
  , Davidson's Plum or Mullumbimby Plum, is a slender small tree, generally 5 metres high, native to lowland subtropical rainforests of New South Wales. It is considered an endangered species in the wild, but is widely cultivated for its pleasantly sour fruit that is used in jam, wine, ice-cream and sauces.

• Davidsonia johnsonii
  Davidsonia johnsonii
  Davidsonia johnsonii, commonly known as smooth Davidson's plum, is a small tree native to rainforests of eastern Australia. The leaves are compound, glossy and hairless. It is a very rare tree in the wild, but is cultivated for its edible fruit....
  
  , Smooth Davidson's Plum, is small tree with a spreading canopy, and smooth leaves native to New South Wales and southeast Queensland. It is also considered an endangered species in the wild, but is not widely cultivated as a result of infertile seeds. It is propagated vegetatively from cutting or root division.

• Davidsonia pruriens
  Davidsonia pruriens
  Davidsonia pruriens, also known as ooray, Davidson's plum, or Queensland Davidson's plum, is a medium sized rainforest tree of northern Queensland, Australia....
  
  , Ooray or Queensland Davidson's plum, is a taller tree than the other two species reaching up to 12 metres high. It is also slender and has larger fruit which are produced in large clusters from the trunk or branches.

Small-scale plantations in New South Wales and Queensland supply the demand, mainly from Davidsonia jerseyana and Davidsonia pruriens.

External links

• CSIRO plant profile http://www.cse.csiro.au/research/nativefoods/crops/plumsdav.htm