''Thryptomene cuspidata'' is a species of flowering plant in the family

Myrtaceae Myrtaceae, the myrtle family, is a family of dicotyledonous plants placed within the order Myrtales. Myrtle, pōhutukawa, bay rum tree, clove, guava, acca (feijoa), allspice, and eucalyptus are some notable members of this group. All speci ...

and is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

to Western Australia. It is a dense erect shrub that typically grows to a height of and blooms between July and November producing white or pink flowers. The species was first formally described in 1852 by Nikolai Turczaninow and given the name ''Paryphantha cuspidata'' in the ''Bulletin de la classe physico-mathematique de l'Academie Imperiale des sciences de Saint-Petersburg''. In 1985, John Green changed the name to ''Thryptomene cuspidata''. ''Thryptomene cuspidata'' is found on plains and among

granite Granite () is a coarse-grained (phaneritic) intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly cools and solidifies undergro ...

outcrops in the Avon Wheatbelt, Coolgardie, Geraldton Sandplains and Mallee

biogeographic regions A biogeographic realm or ecozone is the broadest biogeographic division of Earth's land surface, based on distributional patterns of terrestrial organisms. They are subdivided into bioregions, which are further subdivided into ecoregions. De ...

in the south-west of Western Australia where it grows in sandy to gravelly soils.

References

cuspidata Endemic flora of Western Australia Rosids of Western Australia Plants described in 1985 {{Australia-rosid-stub