Solanum aviculare
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Solanum aviculare, commonly known as kangaroo apple[1] or New Zealand nightshade,[2] is a species of flowering plant in the family Solanaceae and native to New Zealand and the east coast of Australia.
Description
Solanum aviculare is an erect shrub that typically grows to a height of up to Template:Cvt tall. The leaves are lance-shaped to elliptic, Template:Cvt long and Template:Cvt wide, or sometimes lobed, broadly elliptic to egg-shaped with the narrower end towards the base, Template:Cvt long with lobes Template:Cvt long and Template:Cvt long. Both sides of the leaves are the same shaped of green, with a petiole Template:Cvt long. The flowers are arranged in groups of up to ten on a peduncle up to Template:Cvt long, each flower on a pedicel Template:Cvt long. The calyx is Template:Cvt with triangular lobes Template:Cvt long and the petals blue-violet and fused, forming a star-like pattern Template:Cvt in diameter. Flowering mostly occurs in spring and summer, and the fruit is an orange-red to scarlet, oval to elliptic berry Template:Cvt in diameter.[1][3][4][5]
Taxonomy and naming
Solanum aviculare was first described in 1786 by German naturalist Georg Forster in his De Plantis Esculentis Insularum Oceani Australis Commentatio Botanica, from a collection in New Zealand.[6][7] The specific epithet (aviculare) means 'pertaining to small birds', referring to Forster's observation that birds eat the fruit "most gratefully".[1]
The Māori names pōroporo and pōporo come from a generic Proto-Polynesian term for any Solanum species and similar berry-bearing plants. Other names used for Solanum aviculare in the language include hōreto and peoi.[8][9] Pōroporo is also a name used to refer to Solanum laciniatum in Māori.[10]
Distribution and habitat
Solanum aviculare is native to Australia, New Zealand and New Guinea. In Australia it occurs in eastern Queensland, New South Wales (including Lord Howe Island) and Victoria, where it grows in rainforest, wet forest and rainforest margins on clay soils. Associated Australian species include the rainforest plants Golden sassafras (Doryphora sassafras), black wattle (Acacia melanoxylon), and lillypilly (Acmena smithii), and wet forest species brown barrel (Eucalyptus fastigata) and turpentine (Syncarpia glomulifera).[5][1] The species occurs on both North and South Islands and Chatham Island of New Zealand where it usually grows in open shrubland up to Template:Cvt above sea level.[11] Naturalised population are found in South Australia and Western Australia, but the species in possible extinct on Norfolk Island.[1]
Ecology
Bees are thought to pollinate the flowers.[5]
Uses
The fruit when unripe was traditionally boiled by Indigenous communities in Australia to allow for its use as an oral contraceptive for women.[12][13]
The leaves and unripe fruits of S. aviculare contain the toxic alkaloid solasodine. S. aviculare is cultivated in Russia and Hungary for the solasidine which is extracted and used as a base material for the production of steroid contraceptives.[14]
Indigenous communities in Australia also used the fruit as a poultice on swollen joints. The plant contains a steroid which is important to the production of cortisone.[15]
The plant is also used as a rootstock for grafting eggplant.[16]
See also
References
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