It has smooth pinkish bark, narrow lance-shaped to curved adult leaves, flower buds usually in groups of nine, pale yellow flowers and down-turned, hemispherical fruit.Eucalyptus beardiana is a spreading mallee that typically grows to a height of 3 to 5 metres (10 to 16 ft) and forms a lignotuber.

[4][5][6][3] Eucalyptus beardiana was first formally described in 1978 by Ian Brooker and Donald Blaxell who published the description in the journal Nuytsia from a specimen collected near Shark Bay.

The authors considered it appropriate that "his long association with the botany of Western Australia should be perpetuated by a species endemic to the state".

[6] Beard's mallee grows in tree heath, tall open shrubland in association with species including Yuna mallee, mallalie, Eucalyptus gittinsii, sceptre banksia, Ashby's banksia, broom honey-myrtle as well as other species of Acacia, Grevillea and Persoonia.

[3] The main threat to the species is habitat disturbance due to firebreak and track maintenance and by grazing animals and weed invasion.