The fruit is a woody, cup-shaped to barrel-shaped capsule 4–6 mm (0.16–0.24 in) long and wide with the valves near rim level.

[5] In 1991, Ian Brooker and Stephen Hopper raised the variety to species status as Eucalyptus subangusta in the journal Nuytsia.

[3][9] Subspecies pusilla grows in fine textured, stony soils in the northern wheatbelt, between Wongan Hills, Mullewa and Paynes Find.

[3][12] Subspecies subangusta grows on sandplains and hills, usually on yellow or red sand in low to tall mallee.

It is the most widespread and abundant of the four and occurs in the central and northern wheatbelts from north of Kalbarri to south-east of Norseman.