''Acacia chartacea'' 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''
endemic to an area along the west coast of Western Australia.
Description
The erect and straggly shrub or tree typically grows to a height of
[ and sometimes as high as . The branchlets can contain robust stipules with a length of but they are often absent of older plants. It has asymmetric 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 with a prominent midrib that have an ovate to elliptic shape and a length of and a width of .[ It blooms from August to December and produces cream-yellow flowers.][ The racemose inflorescences are found in the upper axils and have spherical densely pack heads containing 60 to 90 cream to pale yellow flowers . The light brown narrowly oblong shaped seed pods that form after flowering have a length of up to and a width of .][
]
Taxonomy
The species was first formally described by the botanist Bruce Maslin in 1992 as part of the work ''Acacia Miscellany 6. Review of Acacia victoriae and related species (Leguminosae: Mimosoideae: Section Phyllodineae)'' as published in the journal '' Nuytsia''. It was reclassified as ''Racosperma chartaceum'' by Leslie Pedley in 2003 then transferred back to the genus ''Acacia'' in 2006.
Distribution
It is native to an area along the west coast in the Mid West
The Midwestern United States, also referred to as the Midwest or the American Midwest, is one of four census regions of the United States Census Bureau (also known as "Region 2"). It occupies the northern central part of the United States. I ...
and the Gascoyne regions of Western Australia from Northampton
Northampton () is a market town and civil parish in the East Midlands of England, on the River Nene, north-west of London and south-east of Birmingham. The county town of Northamptonshire, Northampton is one of the largest towns in England; ...
in the south up to Canarvon in the north where it is found on and among sand dunes and sand plains growing in sandy to sandy-clay soils.alkaline
In chemistry, an alkali (; from ar, القلوي, al-qaly, lit=ashes of the saltwort) is a base (chemistry), basic, ionic compound, ionic salt (chemistry), salt of an alkali metal or an alkaline earth metal. An alkali can also be defined as ...
soils.
See also
* List of ''Acacia'' species
References
{{Taxonbar, from=Q15289724
chartacea
Acacias of Western Australia
Plants described in 1992
Taxa named by Bruce Maslin