angustifolia is a plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia.

angustifolia is an erect shrub which sometimes grows to a height of 4 metres (10 ft) and lacks a lignotuber.

Flowering occurs from August to November and is followed by fruits which are woody, barrel-shaped capsules, 6–10 millimetres (0.2–0.4 in) long.

angustifolia was first formally described in 2010 by Alex George in Nuytsia from a specimen collected near central Greenough.

angustifolius is found inland from Busselton[1] in the Avon Wheatbelt, Geraldton Sandplains, Mallee and Swan Coastal Plain biogeographic regions.