''Denhamia bilocularis'', commonly known as orangebark, is a tree that is endemic to eastern

Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...

. It grows to 10 metres high and has leaves with toothed edges that are 3 to 9 cm long and 1.3 to 3 cm wide and elliptic, ovate or obovate in shape. The flowers, in short racemes or clusters, appear between September and December in the species' native range. The species was formally described in 1859 by Victorian Government Botanist

Ferdinand von Mueller Baron Sir Ferdinand Jacob Heinrich von Mueller, (; 30 June 1825 – 10 October 1896) was a German-Australian physician, geographer, and most notably, a botanist. He was appointed government botanist for the then colony of Victoria, Australia ...

, who gave it the name ''Celastrus bilocularis''. The species was transferred to the genus ''

Maytenus ''Maytenus'' is a genus of flowering plants in the family Celastraceae. Members of the genus are distributed throughout Central America, Central and South America, Southeast Asia, Micronesia, and Australasia, the Indian Ocean and Africa. They gr ...

'' in 1942, and to genus ''

Denhamia ''Denhamia'' is a genus of plants within the family Celastraceae, with species in Australia, New Guinea, and New Caledonia. The species inhabit a variety of environments, from rainforest to semi-arid savanna. All species grow as shrubs or small t ...

'' in 2011. The species occurs in dry rainforest and eucalypt forest in a discrete population near

Atherton, Queensland Atherton is a rural town and Suburbs and localities (Australia), locality in the Tablelands Region, Queensland, Australia. In the , the locality of Atherton had a population of 7,724 people. Geography Atherton is on the Atherton Tableland in ...

as well from

Biloela, Queensland Biloela ( ) is a rural town and suburbs and localities (Australia), locality in the Shire of Banana, Central Queensland, Australia. It is the administrative centre of the shire. In the , the locality of Biloela had a population of 5,692. The loc ...

southwards to

Dorrigo, New South Wales Dorrigo, a small town on the Waterfall Way, is located on the Northern Tablelands, in northern New South Wales, Australia. The town is part of Bellingen local government area. It is approximately north of the state capital, Sydney via the ...

References

bilocularis Endemic flora of Australia Flora of New South Wales Flora of Queensland Taxa named by Ferdinand von Mueller {{Celastraceae-stub