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

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.

[2] The flowers, in short racemes or clusters, appear between September and December in the species' native range.

[3] The species was formally described in 1859 by Victorian Government Botanist Ferdinand von Mueller, who gave it the name Celastrus bilocularis.

[1] The species occurs in dry rainforest and eucalypt forest in a discrete population near Atherton, Queensland as well from Biloela, Queensland southwards to Dorrigo, New South Wales.