description. The formal description was published in Flora Australiensis.

In 1973, Lawrie Johnson and Donald Blaxell changed the name of Eucalyptus cannonii to E. macrorhyncha subsp. cannonii and the names of the two subspecies are accepted by the Australian Plant Census:
* Eucalyptus macrorhyncha subsp. cannonii (R.T.Baker) L.A.S.Johnson & Blaxell