''Acacia diallaga'' 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'' that is
endemic to
Western Australia.
Description
The intricate shrub typically grows to a height of but can reach as high as and has a dense spreading habit. It has
glabrous and lenticellular obscurely ribbed branchlets. Like most species of ''Acacia'' it has
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 rather than true leaves. The glabrous, rigid, green to grey-green to blue-green phyllodes have a narrowly elliptic to oblong-elliptic or somewhat lanceolate shape are a little asymmetric. The phyllodes are straight to slightly recurved with a length of and a width of and pungent with three main nerves.
The phyllodes change colour to a purple red colour in times of
drought and revert to the regular colour following rains.
Distribution
It is native to a small area in the
Wheatbelt region of
Western Australia around
Perenjori.
near
Karara and Warriedar Stations to the east of
Morawa where it is often situated on slopes or crests of low rocky hills growing in skeletal soils as a part of ''
Allocasuarina'' or ''Acacia'' shrubland communities.
[
]
See also
* List of ''Acacia'' species
References
{{Taxonbar, from=Q24190084
diallaga
Acacias of Western Australia
Plants described in 2008
Taxa named by Bruce Maslin