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Australian limes are species of the plant genus ''
Citrus ''Citrus'' is a genus Genus /ˈdʒiː.nəs/ (plural genera /ˈdʒen.ər.ə/) is a taxonomic rank In biological classification In biology, taxonomy () is the scientific study of naming, defining (Circumscription (taxonomy), circums ...

Citrus
'' that are native to
Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

Australia
and
Papua New Guinea Papua New Guinea (PNG; , ; tpi, Papua Niugini; ho, Papua Niu Gini), officially the Independent State of Papua New Guinea ( tpi, Independen Stet bilong Papua Niugini; ho, Independen Stet bilong Papua Niu Gini), is a country in Oceania th ...

Papua New Guinea
. These species were formerly included in the genera ''Microcitrus'' and ''Eremocitrus''. They have been used as a food source by
indigenous Australians Indigenous Australians are people with familial heritage to groups that lived in Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continen ...
as well as early settlers and are used in modern Australian cuisine, including
marmalade Marmalade is a fruit preserve Fruit preserves are preparations of fruit In botany Botany, also called , plant biology or phytology, is the science of plant life and a branch of biology. A botanist, plant scientist or phytol ...

marmalade
and sauces. Species include:


Species from Australia


Natural species

*''
Citrus australasica ''Citrus australasica'', the Australian finger lime or caviar lime, is a thorny understorey shrub A shrub (or bush, but this is more of a gardening term) is a small- to medium-sized perennial woody plant. Unlike herbaceous plants, shrubs ...

Citrus australasica
'' (Finger lime), a species from rainforest regions of northern New South Wales and Southern Queensland with elongated yellow-green to purple fruits. *''
Citrus australis ''Citrus australis'', the Dooja, round lime, Australian lime or Australian round lime, is a large shrub or small tree producing an edible fruit. It grows in forest margins in the Beenleigh, Queensland, Beenleigh area and northwards, in Queenslan ...

Citrus australis
'' (Round lime or Dooja), a species from south-eastern Australia with round, green fruits *''
Citrus glauca ''Citrus glauca'', commonly known as the desert lime, is a thorny shrub or small tree native to Queensland, New South Wales, and South Australia.Burkill, Isaac Henry. 1932. Gardens' Bulletin, Straits Settlements 5 (Index): 3. ''Citrus glauca''. ...
'' (Desert lime), from arid inland areas of inland Australia. Small round fruits are produced in summer. * ''
Citrus garrawayi ''Citrus garrawayi'', the Mount White lime, is a tree native to the Cape York Peninsula, Cape York region of northern Queensland in Australia. It is an understory tree in tropical rainforests. ''Citrus garrawayi'' is a shrub or small tree up to ...
'', (Mount White lime) is rare and endemic to the Cook District of
Cape York Peninsula Cape York Peninsula is a large remote peninsula A peninsula ( la, paeninsula from 'almost' and 'island') is a landform A landform is a natural or artificial feature of the solid surface of the Earth or other planetary body A plane ...
. * '' Citrus gracilis'' (Kakadu lime or Humpty Doo lime) grows in eucalypt woodland in the
Northern Territory The Northern Territory (NT; formally the Northern Territory of Australia) is an Australian territory in the central and central northern regions of Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, ...

/ref> and was first described in the scientific literature in 1998. * ''
Citrus inodora ''Citrus inodora'' or ''Citrus taxonomy#Microcitrus & Eremocitrus, Microcitrus inodora'', commonly known as Russell River lime or large leaf Australian wild lime, is a tree native to the Bellenden Ker Range, Bellenden-Ker Range in northern Queens ...
'' (Russell River lime or large-leaf Australian wild lime) is rare, and endemic to northern Queensland. * ''Citrus maideniana'' (Maiden's Australian wild lime) may be a subspecies of ''C. inodora''.


Cultivars

A number of cultivars have been developed in recent years. These can be grafted on to standard citrus rootstocks. They may be grown as ornamental trees in the garden or in containers. Grafted standards are available for some varieties. The cultivars include: *'Australian Outback' (or 'Australian Desert'), developed from several desert lime varieties *'Australian Red Centre' (or 'Australian Blood' or Blood Lime), a cross of finger lime and a mandarin-lemon or mandarin-sweet orange hybrid *'Australian Sunrise', a hybrid cross of finger lime and a calomondin which is pear shaped and orange inside * 'Rainforest Pearl', a pink-fruited form of finger lime from Bangalow, New South Wales * 'Sunrise Lime ', parentage unknown * 'Outback Lime', a desert lime cultivar


Species from Papua New Guinea

* ''Citrus warburgiana'' (Kakamadu or New Guinea wild lime)
/ref> grows on the south coast of the Papuan Peninsula near Alatau (Papua New Guinea), Alatau(pictures)
*''Citrus wakonai'' (also locally called kakamadu) has been reported from Goodenough Island. * ''Citrus wintersii'', also known as ''Citrus papuana'' (Brown River finger lime) has, as the name suggests, a small, thin fruit, pointed at both ends
pictures
. It grows near Port Moresby. * ''Clymenia (plant), Clymenia sp.'' are native to the Bismarck Archipelago but are cultivated in other areas. ''Clymenia'' is now often considered to belong within the citrus genus. **''Clymenia platypoda'' **''Clymenia polyandra'' has a lemon-sized round fruit, pointed at one en
(pictures)
Citrus species in
Papua New Guinea Papua New Guinea (PNG; , ; tpi, Papua Niugini; ho, Papua Niu Gini), officially the Independent State of Papua New Guinea ( tpi, Independen Stet bilong Papua Niugini; ho, Independen Stet bilong Papua Niu Gini), is a country in Oceania th ...

Papua New Guinea
have not been extensively studied, so the true number of species is unknown.


Identification

A
identification key
(p. 6 or 338) exists for the known Australian limes (not including species from
Papua New Guinea Papua New Guinea (PNG; , ; tpi, Papua Niugini; ho, Papua Niu Gini), officially the Independent State of Papua New Guinea ( tpi, Independen Stet bilong Papua Niugini; ho, Independen Stet bilong Papua Niu Gini), is a country in Oceania th ...

Papua New Guinea
). The leaves of some species broaden dramatically with age.


References

{{citrus Bushfood Limes (fruit) Flora of Papua New Guinea Sapindales of Australia Citrus