Corymbia torelliana, commonly known as cadaghi[2] or cadaga,[3] is a species of tree that is endemic to north Queensland.

[2][3][4][5][6] Cadaghi was first formally described in 1877 by Ferdinand von Mueller who gave it the name Eucalyptus torelliana and published the description in his book Fragmenta phytographiae Australiae.

[4][9] The specific epithet (torelliana) honours "Count Luigi Torelli", who proposed using water-loving eucalypts to reduce the incidence of malaria by drying out marshes.

It is regarded as a weed in south-eastern Queensland where it grows on roadsides, waterways, disturbed sites and waste areas.

Its dense canopy often inhibits the growth of understorey species, affecting the composition of native forests in subtropical areas.

Less invasive alternatives include brush box (Lophostemon confertus), Moreton Bay ash (Corymbia tessellaris) and Queensland maple (Flindersia brayleyana ).