| Acacia dempsteri | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Clade: | Mimosoideae |
| Genus: | Acacia |
| Species: | A. dempsteri |
| Binomial name | |
| Acacia dempsteri | |
 | |
| Occurrence data from AVH | |
Acacia dempsteri is a shrub belonging to the genus Acacia and the subgenus Phyllodineae endemic to south western Australia.
The straggly and prickly shrub typically grows to a height of 1.2 to 4 metres (4 to 13 ft). [1] The shrub has glabrous branchlets with a white powdery coating and spinose stipules with a length of 5 to 12 mm (0.20 to 0.47 in). The green to grey-green phyllodes have a narrowly lanceolate shape that is usually slightly asymmetric The straight to shallowly curved phyllodes have a length of 3 to 6 cm (1.2 to 2.4 in) and a width of 4 to 10 mm (0.16 to 0.39 in) and have a prominent midrib and obscure lateral nerves. [2] It blooms from September to October and produces yellow flowers. [1] The inflorescences are composed of large spherical flower-heads usually around 1 cm (0.39 in) in diameter containing 40 to 50 densely packed golden flowers. The dark brown firmly chartaceous seed pods that form after flowering have a narrowly oblong shape and are raised over the seeds. The pods are up 5 cm (2.0 in) in length with a width of 8 to 10 mm (0.31 to 0.39 in). The dark brown seeds found within have an oblong-elliptic shape and a length of 3 to 4 mm (0.12 to 0.16 in). [2]
The species was first formally described by the botanist Ferdinand von Mueller in 1879 as part of the work Fragmenta Phytographiae Australiae . It was reclassified as Racosperma dempsteri in 2003 by Leslie Pedley then transferred back to genus Acacia in 2006. [3] The shrub belongs to the Acacia victoriae group and is easily distinguished from other members by the large inflorescences. [2]
It is native to an area in the Goldfields-Esperance region of Western Australia where it is found amongst granite outcrops growing in skeletal sandy or loamy soils. [1] It has a scattered distribution from around Kambalda in the north to around Gilmore Rocks in the south and to Breeborinia Rock, about 100 km (62 mi) south of Balladonia in the east where it forms part of shrubland or mallee communities. [2]
Acacia anastomosa, also known as Carson River wattle, is a shrub belonging to the genus Acacia and the subgenus Juliflorae that is endemic to north western Australia.
Acacia intorta is a shrub or tree belonging to the genus Acacia and the subgenus Juliflorae that is endemic to arid parts of central Western Australia.
Acacia levata is a shrub belonging to the genus Acacia and the subgenus Juliflorae that is endemic to small arid area of western Australia.
Acacia lirellata is a shrub belonging to the genus Acacia and the subgenus Juliflorae that is endemic to south western Australia.
Acacia ptychophylla is a shrub belonging to the genus Acacia and the subgenus Juliflorae the is endemic to arid areas of north western Australia.
Acacia clydonophora is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is endemic to Western Australia.
Acacia crassistipula is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is endemic to western Australia.
Acacia insolita is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is endemic to south western Australia.
Acacia kochii is a shrub belonging to the genus Acacia and the subgenus Phyllodineae.
Acacia nigripilosa is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is endemic to Western Australia.
Acacia spathulifolia commonly known as Gold carpet or the Gold carpet wattle is a shrub of the genus Acacia and the subgenus Phyllodineae that is endemic to coastal parts of western Australia.
Acacia trulliformis is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to an area of south western Australia.
Acacia halliana is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is native to parts of south eastern Australia.
Acacia hamiltoniana, commonly known as Hamilton's wattle, is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is native to parts of eastern Australia.
Acacia polifolia is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is native to parts of eastern Australia.
Acacia nana, also known as the small red-leaved wattle, is a shrub belonging to the genus Acacia and the subgenus Phyllodineae where it is endemic to eastern Australia.
Acacia quornensis, commonly known as Quorn wattle, is a shrub belonging to the genus Acacia and the subgenus Phyllodineae native to southern Australia.
Acacia saliciformis is a shrub or tree belonging to the genus Acacia and the subgenus Phyllodineae native to eastern Australia.
Acacia triquetra, also known as the gold dust wattle, is a shrub belonging to the genus Acacia and the subgenus Phyllodineae native to southern Australia.
Acacia kybeanensis, commonly known as kybean wattle or kybeyan wattle, is a shrub of the genus Acacia and the subgenus Phyllodineae that is endemic to south eastern Australia.