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Polyosma cunninghamii at Mount Banda Banda.jpg
Polyosma cunninghamii
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Escalloniales
Family: Escalloniaceae
Genus: Polyosma

About 60; see text.

Polyosma is a genus of about 60 species of trees native to south-east Asia. They occur from China south through south-east Asia to the east coast of Australia, and also in New Caledonia.

Its taxonomic placement has long been uncertain: it was traditionally placed in Grossulariaceae, but in the APG II system it was given its own family, Polyosmaceae, which was unplaced as to order within the euasterids II (campanulids) clade.[1] More recent research found Polyosmaceae to be a sister to the Escalloniaceae, so for simplicity's sake the Angiosperm Phylogeny Website now recommends the latter family be expanded to include this genus.[2]

Species include:


  1. ^ Angiosperm Phylogeny Group (2003). "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II". Botanical Journal of the Linnean Society. 141 (4): 399–436. doi:10.1046/j.1095-8339.2003.t01-1-00158.x. 
  2. ^ Stevens, P (2001 onwards). "Angiosperm Phylogeny Website". Missouri Botanical Garden. Retrieved 2009-02-04.  Check date values in: |date= (help)
  3. ^ a b c d e f g "Polyosma". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government, Canberra. Retrieved 2009-02-05. 
  4. ^ a b c d e f g "Genre Polyosma". Endémía - Faune & Flore de Nouvelle-Calédonie. Retrieved 2009-02-05. 
  5. ^ a b "Polyosma cambodiana Gagnepain". Flora of China. www.efloras.org. Retrieved 2009-02-05.