''Acacia microneura'' is a shrub belonging to the genus ''

Acacia ''Acacia'', commonly known as the wattles or acacias, is a large genus of shrubs and trees in the subfamily Mimosoideae of the pea family Fabaceae. Initially, it comprised a group of plant species native to Africa and Australasia. The genus na ...

'' and the subgenus ''Juliflorae''

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 southern

Western Australia Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to th ...

Description

The slender shrub typically grows to a height of . The resinous and angled branchlets have small white hairs between the angles. The ascending, linear, straight to slightly curved green

phyllode Phyllodes are modified petioles or leaf stems, which are leaf-like in appearance and function. In some plants, these become flattened and widened, while the leaf itself becomes reduced or vanishes altogether. Thus the phyllode comes to serve the ...

s have a length of and a width of . The phyllodes have a central nerve and broader marginal nerves. It flowers from August to October producing yellow flowers. The simple

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...

s occur singly or in pairs per node. The spherical to obloid flower-heads have a diameter of around and contains 20 flowers.

Taxonomy

The species was first formally described by the botanist Carl Meissner as part of Johann Georg Christian Lehmann's work ''Leguminosae. Plantae Preissianae''. It was reclassified as ''Racosperma microneurum'' by

Leslie Pedley Leslie Pedley (19 May 1930 – 27 November 2018)IPNILeslie Pedley/ref> was an Australian botanist who specialised in the genus ''Acacia''. He is notable for bringing into use the generic name ''Racosperma'', creating a split in the genus, which r ...

in 2003 then transferred back to the genus ''Acacia'' in 2006. The only other synonym is ''Acacia subangularis'', but the plant is also often confused with '' Acacia lineolata''.

Distribution

It is native to a small area in the Great Southern region of Western Australia around the town of Cranbrook where it is found in disturbed areas and heathlands where it grows in sandy-loamy soils over and around

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 ...

References

{{Taxonbar, from=Q15287810 microneura Acacias of Western Australia Plants described in 1844 Taxa named by Carl Meissner

Description

Taxonomy

Distribution

See also

References