| Dwarf rock wattle | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Subfamily: | Caesalpinioideae |
| Clade: | Mimosoid clade |
| Genus: | Acacia |
| Species: | A. pygmaea |
| Binomial name | |
| Acacia pygmaea | |
Acacia pygmaea, commonly known as the dwarf rock wattle, [1] is a shrub of the genus Acacia and the subgenus Phyllodineae that is endemic to south western Australia.
The erect single-stemmed shrub typically grows to a height of 0.3 to 0.5 metres (1.0 to 1.6 ft). The dwarf subshrub has prominently ribbed and glabrous branchlets with shallowly triangular stipules with a length of around 0.5 mm (0.020 in). Like most species of Acacia it has phyllodes rather than true leaves. The thin green phyllodes are crowded on the branchlets with an elliptic to obovate shape and a length of 20 to 30 mm (0.79 to 1.18 in) and a width of 9 to 13 mm (0.35 to 0.51 in) with one or sometimes two main nerves and a few obscure lateral nerves. [2] It blooms from October to March and produces white-cream flowers [3] that age to an orange colour. [1]
It belongs to the Acacia myrtifolia group and is closely related to Acacia disticha and seemingly related to Acacia nervosa and Acacia obovata . [2]
It is native to a small area in the Wheatbelt region of Western Australia where it is commonly found in crevices at the summit of ridges growing in laterite based soils. [3] It has a limited range around Wongan Hills where it is situated along three adjacent ridges around Mount Matilda and Mount O'Brien across a length of about 8 km (5.0 mi) with a few populations and a total number of 129 individual plants recorded in 1997. It is usually a part of open Eucalyptus ebbanoensis mallee over open heathland communities composed of Allocasuarina campestris , Banksia pulchella , Banksia hewardiana and Persoonia divergens . [1]
Acacia macraneura, commonly known as big mac wattle, is a shrub belonging to the genus Acacia and the subgenus Juliflorae that is native to arid parts of western Australia.
Acacia sulcaticaulis, also commonly known as the Mount Mulgine fluted wattle, is a shrub or tree belonging to the genus Acacia and the subgenus Juliflorae that is native to a small area in western Australia.
Acacia claviseta, also known as the club-tipped whorled wattle, is a shrub belonging to the genus Acacia and the subgenus Lycopodiifoliae that is endemic to north western Australia.
Acacia lachnophylla is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is endemic to south western Australia.
Acacia laricina is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is endemic to south western Australia.
Acacia rossei, also known as Yellowdine wattle, is a shrub of the genus Acacia and the subgenus Phyllodineae that is endemic to south western Australia.
Acacia vassalii, commonly known as Vassal's wattle, is a shrub of the genus Acacia and the subgenus Phyllodineae that is endemic to a small area of south western Australia. It is listed as critically endangered with the World Conservation Union, as endangered according to the Environment Protection and Biodiversity Conservation Act 1999 and as rare flora with the Wildlife Conservation Act 1950 in Western Australia.
Acacia arrecta, commonly known as Yarnda Nyirra wattle or Fortescue wattle, is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to arid areas in north western Australia.
Acacia bartlei, commonly known as Bartle's wattle, is a shrub or tree of the genus Acacia and the subgenus Plurinerves. It is native to a small area along the south coast in the Goldfields-Esperance region of Western Australia.
Acacia cavealis is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to an area along the west coast of Australia.
Acacia consanguinea is a shrub of the genus Acacia and the subgenus Plurinerves that is endemism to south western Australia.
Acacia flavipila is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to an area of south western Australia.
Acacia lineolata, commonly known as dwarf myall, is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to an area of south western Australia.
Acacia mimica is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to south western Australia.
Acacia octonervia is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to a small area along the south western coast of Australia.
Acacia pinguiculosa is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to an area of south western Australia.
Acacia subsessilis is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to an area of western Australia.
Acacia uncinella is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to an area of south western Australia.
Acacia obtusata, commonly known as blunt-leaf wattle or obtuse wattle, is a tree or shrub belonging to the genus Acacia and the subgenus Phyllodineae native to eastern Australia.
Acacia pickardii, commonly known as Pickard's wattle or birds nest wattle, is a tree or shrub belonging to the genus Acacia and the subgenus Phyllodineae native to eastern Australia. It is listed as a vulnerable species according to Environment Protection and Biodiversity Conservation Act 1999.
