| Acacia donaldsonii | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Clade: | Mimosoideae |
| Genus: | Acacia |
| Species: | A. donaldsonii |
| Binomial name | |
| Acacia donaldsonii | |
 | |
| Occurrence data from AVH | |
Acacia donaldsonii is a shrub of the genus Acacia and the subgenus Plurinerves that is endemism in an area of south western Australia.
The erect pungent shrub or gnarled tree typically grows to a height of 1.5 to 5 metres (5 to 16 ft) [1] and has terete hairy branchlets that are scarred by raised stem-projections. Like most species of Acacia it has phyllodes rather than true leaves. The evergreen, ascending to erect phyllodes are straight to shallowly incurved with a length of 6 to 14.5 cm (2.4 to 5.7 in) and a diameter of 1.5 to 2.5 mm (0.059 to 0.098 in). The pungent and rigid phyllodes have four to eight distant and obscure main nerves. [2] When it flowers it produces simple inflorescences in groups of towo or more in the axils the spherical flowerheads have a diameter of 4 to 5 mm (0.16 to 0.20 in) and contain 30 to 56 golden coloured flowers. The seed pods that form after flowering resemble a string of beads and are linear and curved and split open as they dry and become more twisted. The leathery and glabrous pod are up to 14 cm (5.5 in) in length and 6 to 10 mm (0.24 to 0.39 in) wide. The dull brown seeds inside have an elliptic to oblong-elliptic shape with a length of 6 to 9 mm (0.24 to 0.35 in). [2]
The species was first formally described by the botanists Richard Sumner Cowan and Bruce Maslin in 1999 as part of the work Acacia miscellany 18. The taxonomy of miscellaneous species with sharply pungent phyllodes in Acacia section Plurinerve as published in the journal Nuytsia . It was reclassified as Racosperma donaldsonii in 2003 by Leslie Pedley then transferred back to gnus Acacia in 2006. [3]
It is native to an area in the Goldfields-Esperance region of Western Australia where it commonly situated on saline stony plains, near salt lakes and sandplains growing in clay, clay-loam, gravelly and sandy soils. [1] It has a scattered distribution and is found from around Windimurra and Weebo Station and Lake Yindarlgooda in the north down to around Norseman in the south as well as Carlisle Lakes as a part of low open shrubland with various species of Atriplex and Maireana . [2]
Acacia aulacophylla is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to western Australia.
Acacia awestoniana, commonly known as the Stirling Range wattle, is a shrub of the genus Acacia and the subgenus Plurinerves.
Acacia balsamea, commonly known as balsam wattle, is a shrub of the genus Acacia and the subgenus Plurinerves.
Acacia dissona is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to an area of south western Australia.
Acacia eremaea is a shrub or tree of the genus Acacia and the subgenus Plurinerves that is endemic to an area in western Australia.
Acacia hadrophylla is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to south western Australia.
Acacia masliniana, commonly known as Maslin's wattle is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to arid parts of western Australia.
Acacia nivea is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to south western Australia.
Acacia nyssophylla, commonly known as pin bush, wait a while and spine bush, is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to a large area of central and south-western and southern Australia.
Acacia patagiata, also commonly knowns as salt gully wattle, is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to south western Australia.
Acacia pelophila is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to a small area along the west coast of western Australia.
Acacia pharangites, commonly known as Wongan gully wattle, is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to a small area of south western Australia and is listed as endangered according to the Environment Protection and Biodiversity Conservation Act 1999.
Acacia phlebocarpa, also known as tabletop wattle, is a shrub of the genus Acacia and the subgenus Plurinerves and is native to northern Australia.
Acacia recurvata, commonly known as the recurved wattle, is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to a small area of western Australia.
Acacia speckii is a shrub or tree of the genus Acacia and the subgenus Plurinerves that is endemic to a small area in central western Australia.
Acacia tetanophylla is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to an area of south western Australia.
Acacia undosa is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to an area of south western Australia.
Acacia unguicula is a shrub of the genus Acacia and the subgenus Plurinerves. It is native to a small area in the Mid West region of Western Australia.
Acacia vittata, commonly known as Lake Logue wattle, is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to a small area in western Australia.
Acacia warramaba is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to an area of south western Australia.