''Acacia glaucocaesia'' is a shrub or tree 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 ''Phyllodineae'' that is
endemic to north western parts of
Australia
Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...
.
Description
The dense
glabrous shrub or tree typically grows to a height of .
[ It has branchlets with a white powdery covering and spiny stipules on younger plants. The thin ]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 are rarely green except on new shoots. The phyllodes have an elliptic to lanceolate shape and a length of and a width of and an inconspicuous midrib.[ The inflorescences are spherical containing 35 to 50 pale yellow flowers. The seed pods that form after flowering have a narrowly oblong shape with a length of up to and a width of and have a powdery white covering. The shiny brown to black seeds within have an oblong to ovate shape and are in length.][
]
Taxonomy
The species was first formally described by the botanist Karel Domin in 1926 as part of the work ''Beitrage zur Flora und Pflanzengeographie Australiens'' as published in ''Bibliotheca Botanica''. It was reclassified as ''Racosperma glaucocaesium'' by Leslie Pedley in 2003 then transferred back to the genus ''Acacia'' in 2006.
Distribution
It is native to an area in the Pilbara and Kimberley
Kimberly or Kimberley may refer to:
Places and historical events
Australia
* Kimberley (Western Australia)
** Roman Catholic Diocese of Kimberley
* Kimberley Warm Springs, Tasmania
* Kimberley, Tasmania a small town
* County of Kimberley, a ...
regions of Western Australia where it is mostly found in floodplains growing in sandy, clay or loamy soils.
See also
* List of ''Acacia'' species
References
{{Taxonbar, from=Q15287125
glaucocaesia
Acacias of Western Australia
Taxa named by Karel Domin
Plants described in 1926