Cupaniopsis cooperorum, commonly known as Cooper's puzzle,[2] is a species of flowering plant in the soapberry family and is endemic to Queensland.

It is a small tree with paripinnate leaves with 8 to 14 lance-shaped leaflets with the narrower end towards the base, separate male and female, cream-coloured flowers arranged in panicles, the fruit an orange-pink capsule.

Cupaniopsis cooperorum is small tree that typically grows to a height of up to 7 m (23 ft) and often has many stems.

[2][3][4] Cupaniopsis cooperorum was first formally described in 2002 by Paul Irwin Forster in the journal Austrobaileya from specimens collected in the Wooroonooran National Park in 2002.

[2] Cooper's puzzle grows in vineforest on red basalt soils on the Atherton Tableland at altitudes between 650–750 m (2,130–2,460 ft).