Eucalyptus blaxellii is a multi-stemmed mallee that typically grows to a height of 1 to 4 metres (3 to 13 ft).

[1][4][5] Eucalyptus balxellii was first formally described in 1992 by Ken Hill and Lawrie Johnson from a specimen collected in 1978 at Howatharra Gap north of Geraldton by Donald Blaxell.

[6] The specific epithet (blaxellii) honours the collector of the type specimen who discovered the species.

[5] The Howatharra mallee is found on rocky hillsides and creek flats in the Wheatbelt near Morawa and in the Mid West region between Northampton and Geraldton in the Moresby Range where it grows in sandy-clay soils.

[7] This mallee eucalypt is classified as "Priority Four" by the Government of Western Australia Department of Parks and Wildlife,[1] meaning that is rare or near threatened.