''Styphelia pentapogona'' is a species of flowering plant in the heath family

Ericaceae The Ericaceae () are a Family (biology), family of flowering plants, commonly known as the heath or heather family, found most commonly in acidic and infertile growing conditions. The family is large, with about 4,250 known species spread acros ...

and is

endemic Endemism is the state of a species being found only 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 foun ...

to the south-west of Western Australia. It is a diffuse shrub with many erect or ascending branchlets, crowded egg-shaped or lance-shaped leaves about long, with a small point on the tip. The flowers are borne in lower leaf axils and are

sessile Sessility, or sessile, may refer to: * Sessility (motility), organisms which are not able to move about * Sessility (botany), flowers or leaves that grow directly from the stem or peduncle of a plant * Sessility (medicine), tumors and polyps that ...

with very small

bract In botany, a bract is a modified or specialized leaf, associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves in size, color, shape or texture. They also lo ...

s and bracteoles less than long at the base. The petals are joined at the base forming a tube about long with bearded lobes. ''Styphelia pentapogona'' was first formally described in 1867 by

Ferdinand von Mueller Baron Sir Ferdinand Jacob Heinrich von Mueller, (; 30 June 1825 – 10 October 1896) was a German-Australian physician, geographer, and most notably, a botanist. He was appointed government botanist for the then colony of Victoria, Australia ...

in his ''

Fragmenta phytographiae Australiae ''Fragmenta phytographiae Australiae'' is a series of papers written by the Victorian Government botanist Ferdinand von Mueller in which he published many of his approximately 2000 descriptions of new taxa of Australian plants. Including the p ...

'' from specimens collected by

George Maxwell George Maxwell (1804–1880) was a professional collector of plants and insects in Southwest Australia. The botanical specimens he obtained were used to make formal descriptions of the region's plant species. Biography Maxwell was born in England ...

. This styphelia is found in the

Esperance Plains Esperance Plains, also known as Eyre Botanical District, is a biogeography, biogeographic region in southern Western Australia on the South_coast_of_Western_Australia , south coast between the Avon Wheatbelt and Hampton bioregions, and bordere ...

and Mallee bioregions of south-western Western Australia and is listed as "not threatened".

References

pentapogona Flora of Western Australia Plants described in 1867 Taxa named by Ferdinand von Mueller {{Australia-asterid-stub