Ryparosa kurrangii is a rare plant in the family Achariaceae which is endemic to a very small part of the Queensland tropical rain forests.

Ryparosa kurrangii is a small evergreen tree which commonly grows to be 15–20 m tall – larger specimens often develop fluted trunks and buttress roots.

[4] In 2006 the Australian botanist Bruce L. Webber published a paper in which he reviewed the R. javanica complex, and R. kurrangii is one of several new species that he created.

[4] The genus name Ryparosa is derived from the Ancient Greek work ῥῠ́πος (rhúpos) meaning dirt or filth, and refers to the dark hairs.

[5][8] It is endemic to Queensland, Australia, and restricted to an extremely small area, i.e. the coastal strip between the Daintree River in the south and Cape Tribulation in the north, and bounded by the Coral Sea to the east and the Great Dividing Range in the west.