Styphelia disjuncta is a species of flowering plant in the heath family Ericaceae and is endemic to a small area in the south-west of Western Australia. It is an erect shrub with egg-shaped to narrowly egg-shaped leaves, and white, tube-shaped flowers arranged singly in leaf axils.
Styphelia disjuncta is an erect shrub that typically grows up to high and wide, its young branchlets densely hairy. The leaves are erect, egg-shaped to narrowly egg-shaped, long and wide on a petiole long. There is a sharp point on the end of the leaves and the lower surface is a slightly lighter shade of green. The flowers are arranged singly in leaf axils with egg-shaped bracts long and egg-shaped bracteoles long and long at the base. The sepals are narrowly egg-shaped, long and wide, the petals white, forming a tube long with lobes long. Flowering occurs from June to early September and the fruit is oval, long and wide.[1]
Styphelia disjuncta was first formally described in 2019 by Michael Clyde Hislop and Caroline Puente-Lelievre in the journal Nuytsia from specimens collected by Hislop west of Lake Grace in 2001.[2] The specific epithet (disjuncta) means "separate or distinct", referring to the geographical disjunction between the northern and southern populations of this species.[3]
This styphelia grows in sand or sandy loam in the Dumbleyung and Ongerup areas in heath or open mallee woodland in the Esperance Plains and Mallee bioregions of south-western Western Australia.
Styphelia disjuncta is listed as "critically endangered" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999[4] and as "Threatened" by the Western Australian Government Department of Biodiversity, Conservation and Attractions, meaning that it is in danger of extinction.