''Beaufortia purpurea'', commonly known as purple beaufortia, is a species of flowering plant in the myrtle 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 to the southwest of Western Australia. It is an erect or spreading shrub with linear to egg-shaped leaves and purplish-red flowers in dense heads on the ends of branches which continue to grow after flowering.

Description

''Beaufortia purpurea'' is an erect, sometimes open, spreading shrub with long, straight, thin branches and which grows to a height of about . The leaves are arranged in alternate pairs (

decussate Decussation is used in biological contexts to describe a crossing (due to the shape of the Roman numeral for ten, an uppercase 'X' (), ). In Latin anatomical terms, the form is used, e.g. . Similarly, the anatomical term chiasma is named aft ...

) on the younger branches, so that they make four rows along the stems. The leaves are lance-shaped to egg-shaped while the oldest ones are linear. The leaves are long and have 3 or 5 veins. The flowers are purple or purplish red and are arranged in bottlebrush-like spikes on the ends of branches which continue to grow after flowering. The flowering part of the stem is densely hairy and the flowers have 5 sepals, 5

petal Petals are modified Leaf, leaves that surround the reproductive parts of flowers. They are often advertising coloration, brightly colored or unusually shaped to attract pollinators. All of the petals of a flower are collectively known as the ''c ...

s and 5 bundles of

stamen The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ of a flower. Collectively the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filame ...

s. The stamen bundles, which give the flowers their colour contain 3 to 7 (usually 5) stamens which are joined for about half their length. Flowering occurs from October to December or in January to February and is followed by fruit which are woody capsules in clusters about long .

Taxonomy and naming

''Beaufortia purpurea'' was first formally described in 1839 by English botanist,

John Lindley John Lindley FRS (5 February 1799 – 1 November 1865) was an English botanist, gardener and orchidologist. Early years Born in Catton, near Norwich, England, John Lindley was one of four children of George and Mary Lindley. George Lindley w ...

A Sketch of the Vegetation of the Swan River Colony "A Sketch of the Vegetation of the Swan River Colony", also known by its standard botanical abbreviation ''Sketch Veg. Swan R.'', is an 1839 article by John Lindley on the flora of the Swan River Colony. Nearly 300 new species were published in it, ...

. The

specific epithet In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...

(''purpurea'') is a Latin word meaning "purple".

Distribution and habitat

''Beaufortia purpurea'' mainly occurs in the outer suburbs of Perth in the Jarrah Forest and

Swan Coastal Plain The Swan Coastal Plain in Western Australia is the geographic feature which contains the Swan River as it travels west to the Indian Ocean. The coastal plain continues well beyond the boundaries of the Swan River and its tributaries, as a geol ...

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 ...

. It usually grows in soils derived from

laterite Laterite is both a soil and a rock type rich in iron and aluminium and is commonly considered to have formed in hot and wet tropical areas. Nearly all laterites are of rusty-red coloration, because of high iron oxide content. They develop by ...

or granite on rocky slopes.

Conservation

''Beaufortia orbifolia'' is classified as " Priority Three" by the Western Australian Government Department of Biodiversity, Conservation and Attractions meaning that it is poorly known and known from only a few locations but is not under imminent threat.

References

{{Taxonbar, from=Q15396017 purpurea Plants described in 1839 Endemic flora of Western Australia Taxa named by John Lindley