The narrow leaves help to distinguish the swamp mallet from other related species. It grows up to 9m high in heavy loam or clay soil and usually in low lying areas of the southern wheatbelt of Western Australia, north and north-west from Ravensthorpe towards Wagin. This area has an annual rainfall from 300 to 380mm. This species has moderate drought and frost resistance.; The bark is smooth, grey brown or red brown, and the branches project upwards from the trunk at an acute angle, giving the shrub or tree a compact appearance. It is used for shelter or windbreaks, as well as ornamental, is recommended, and it can also be used for salty areas. Flowering time is from October to December.