| Grass wattle | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Clade: | Mimosoideae |
| Genus: | Acacia |
| Species: | A. willdenowiana |
| Binomial name | |
| Acacia willdenowiana | |
 | |
| Occurrence data from AVH | |
Acacia willdenowiana is a shrub belonging to the genus Acacia . The plant is also commonly known as wattle grass, [1] grass wattle or two-winged acacia. [2] It is native to the south west of Western Australia. [3]
The shrub has erect and slender or scrambling habit and typically grows to a height of 0.3 to 0.6 metres (1.0 to 2.0 ft) [3] and a width of around 0.5 metres (1.6 ft). It forms a woody base stem over time. [1] The phyllodes are continuous with branchlets, forming opposing wings with each one extending to the next one below. Each grey-green wings has a typical width of 1 to 5 millimetres (0.04 to 0.20 in) but can get to 15 mm (0.59 in) and are usually glabrous. The free part of phyllode is mostly 5 to 20 mm (0.20 to 0.79 in) in length. [4] It blooms between May and October producing white - cream and yellow blossoms. [3] Each inflorescence is racemose with globular heads containing 13 to 21 white, cream or pale lemon yellow flowers. Seed pods form after flowering, each pod is curved but flat to about 6 cm (2.4 in) in length with a width of 10 to 15 mm (0.39 to 0.59 in). The oblong seeds transverse are 5 to 6 mm (0.20 to 0.24 in) long. [4]
The species was first formally described by the botanist Heinrich Wendland in 1845 as part of the work Verzeichniss von Treib-Glashaus-Bosquet-Pflanzen, Standen-Gewachsen und Georginen ... zu Herrenhausen bei Hannover. It was briefly reclassified as Racosperma willdenowianum by Leslie Pedley in 2003 but was reverted to the original name in 2006. [2]
The species name willdenowiana is in honour of Carl Ludwig Willdenow, a German botanist. [5]
The type specimen was collected by James Drummond in the Swan River Colony in 1839. [4]
Until 1995, the closely related Acacia applanata was considered to be the same species as A. willdenowiana. [5] A. willdenowiana is also similar to Acacia alata and has phyllodes resembling those of Acacia pterocaulon . [4]
It has a scattered distribution from the Mid West, Wheatbelt, Peel and Great Southern regions. It is found as far north as Three Springs, south as Albany and east as Mukinbudin. The plant is able to grow in loam, sandy or lateritic soils and is often found in winter wet depressions [3] and is a part of the understorey in woodland or open woodland communities. [4]
The plants has only limited commercial availability. It fares best in an open position with full sun in a well-drained soil. It is used as part of a native garden, or as a feature in garden borders. It is both frost and drought tolerant and will not require pruning. [1]
Acacia enterocarpa, commonly known as jumping jack wattle, is a shrub species that is endemic to eastern Australia.
Acacia fimbriata, commonly known as the fringed wattle or Brisbane golden wattle, is a species of Acacia that is native along much of the east coast of Australia.
Acacia glaucoptera, commonly known as flat wattle or clay wattle, is a species of Acacia which is endemic to the south-west of Western Australia.
Acacia cremiflora, is a small wattle plant occurring in parts of inland New South Wales. It may be seen growing near Orange and Yerranderie. It was first collected on 15 May 1972. The attractive yellow or cream flowers may appear at any time of the year.
Acacia applanata, also known as golden grass wattle or grass wattle, is a grasslike shrub belonging to the genus Acacia and subgenus Alatae. It is native to the south west of Western Australia.
Acacia bifaria is a shrub belonging to the genus Acacia. It is native to an area along the south coast of Western Australia.
Acacia pterocaulon is a shrub belonging to the genus Acacia and subgenus Alatae. It is native to a small area in the Mid West region of Western Australia.
Acacia continua, or the thorn wattle, is a shrub belonging to the genus Acacia and the subgenus Alatae. It native to New South Wales and South Australia.
Acacia hilliana, commonly known as Hill's tabletop wattle but also known as sandhill wattle and Hilltop wattle, is a shrub belonging to the genus Acacia and the subgenus Juliflorae. It is native to northern Australia.
Acacia ramulosa, commonly known as horse mulga or bowgada wattle, is a shrub belonging to the genus Acacia and the subgenus Juliflorae endemic to arid areas of Australia.
Acacia tenuissima, commonly known as narrow-leaved wattle, broom wattle, minyana, slender mulga or slender wattle, is a shrub belonging to the genus Acacia and the subgenus Juliflorae endemic to temperate and tropical areas of Australia. Indigenous Australians the Kurrama peoples know the plant as Janangungu and the Banyjima know it as Murruthurru.
Acacia bidentata is a shrub belonging to the genus Acacia and the subgenus Phyllodineae and is native to Western Australia.
Acacia crassiuscula is a shrub belonging to the genus Acacia and the subgenus Phyllodineae found along the south coast of Western Australia.
Acacia dictyophleba, also known as the sandhill wattle, waxy wattle and feather veined wattle, is a shrub belonging to the genus Acacia and the subgenus Phyllodineae. The Nyangumarta peoples know the plant as Langkur or Lungkun and the Thalanyji know it as Jabandi.
Acacia gonophylla, also known as rasp-stemmed wattle, is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is endemic to south western parts of Australia.
Acacia merrickiae is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is endemic to a small area of south western Australia.
Acacia microbotrya, commonly known as manna wattle or gum wattle, is a shrub or tree belonging to the genus Acacia and the subgenus Phyllodineae that is native to Western Australia.
Acacia colletioides, commonly known as wait-a-while, pin bush and spine bush, is a shrub of the genus Acacia and the subgenus Plurinerves that is native to 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 hemignosta commonly known as the clubleaf wattle, is a tree or shrub of the genus Acacia and the subgenus Plurinerves that is endemic to northern parts of Australia.