| Two flowered acacia | |
|---|---|
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| Illustration of Acacia biflora | |
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. biflora |
| Binomial name | |
| Acacia biflora | |
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| Occurrence data from AVH | |
Acacia biflora, commonly known as two-flowered acacia, [2] is a shrub belonging to the genus Acacia and the subgenus Phyllodineae.
The prostrate to ascending, erect, open or dense shrub typically grows to a height of 0.1 to 0.5 metres (0 to 2 ft). It blooms from December to May and produces creamy-white flowers. [3] The branchlets are shortly covered with small soft hairs to sparsely or densely puberulous. The pungent green phyllodes are inequilateral, obtriangular to obdeltoid shape. They are usually 3 to 7 millimetres (0.12 to 0.28 in) in length with a width of 3 to 8 mm (0.12 to 0.31 in) but can be longer on older branches. It has simple inflorescences with one found per axil supported on peduncles that are 3 to 8 mm (0.12 to 0.31 in) long. The heads are globular containing two white to cream flowers. Following flowering curved narrowly oblong seed pods form that are around 5.5 centimetres (2.2 in) in length and 4 to 5 mm (0.16 to 0.20 in) wide. The glossy, greyish brown oblong seeds the pods contain are 3 to 3.5 mm (0.12 to 0.14 in) long. [4]
The species was first formally described by the botanist Robert Brown in 1813 in the William Townsend Aiton work Hortus Kewensis. [5] The name is often misapplied to Acacia chrysocephala . [5]
A. biflora is part of the A. biflora group of Acacias along with A. chrysocephala , A. divergens , A. incrassata , A. mooreana , A. phlebopetala and A. robinae . The species all have similar structure but can be differentiated by flower characteristics. [4]
The specific epithet (biflora) is derived from the Latin prefix bi- meaning "two" [6] : 141 and the Latin word flos meaning "flower". [6] : 338
It is native to an area in the South West, Great Southern and Goldfields-Esperance regions of Western Australia where it grows in sandy to gravelly lateritic soils. [3] The shrub is found in a large continuous distribution from the Stirling Range National Park south to the coast and then east to near Jerramungup and Bremer Bay with disjunct populations in several areas further east including around Scaddan and at Lucky Bay in Cape Le Grand National Park. [4] It is often found as part of woodlands or low mallee scrubland communities. [4]
Acacia enterocarpa, commonly known as jumping jack wattle, is a shrub species that is endemic to eastern Australia.
Acacia monticola, commonly known as red wattle, gawar, curly-bark wattle, curly-bark tree and hill turpentine, is a species of plant in the legume family that is native to northern Australia.
Acacia adsurgens, commonly known as whipstick wattle or sugar brother, is a species of flowering plant in the family Fabaceae and is endemic to northern areas of Australia. It is a spreading shrub with many stems, flat, linear phyllodes, densely-flowered spikes of yellow flowers, and linear, paper-like or crusty pods.
Acacia filamentosa is a shrub belonging to the genus Acacia and the subgenus Juliflorae that is endemic to north western Australia.
Acacia gibsonii, commonly known as Gibson's wattle, is a shrub belonging to the genus Acacia and the subgenus Juliflorae.
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 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 yorkrakinensis, also known as soft-leaf wodjil, is a shrub belonging to the genus Acacia and the subgenus Juliflorae that is native to Western Australia.
Acacia blaxellii, also known as Blaxell's wattle, is a shrub belonging to the genus Acacia and the subgenus Phyllodineae endemic to Western Australia.
Acacia chrysocephala is a shrub belonging to the genus Acacia and the subgenus Phyllodineae.
Acacia dictyophleba, also known as the sandhill wattle, waxy wattle, feather veined wattle, and spear tree, is a shrub belonging to the genus Acacia and the subgenus Phyllodineae, found in Australia. The Nyangumarta peoples know the plant as Langkur or Lungkun; the Thalanyji know it as Jabandi; and the Pintupi know it as mulyati.
Acacia divergens is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is native to Western Australia.
Acacia gregorii, commonly known as Gregory's wattle, is a shrub belonging to the genus Acacia and the subgenus Phyllodineae native to Western Australia.
Acacia nervosa, commonly known as rib wattleribbed wattle or perfumed wattle, is a shrub belonging to the genus Acacia and the subgenus Phyllodineae.
Acacia robiniae, commonly known as Robin's wattle, is a shrub of the genus Acacia and the subgenus Phyllodineae that is endemic to south 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 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 ammobia, commonly known as the Mount Connor wattle, or Mount Conner wattle, is a species of flowering plant in the family Fabaceae and is endemic to areas near the border between South Australia and the Northern Territory. It is a shrub or small tree with linear phyllodes, flowers arranged in 1 or 2 spikes on side shoots, each spike with densely crowded yellow flowers. The fruit is a linear pods 55–110 mm (2.2–4.3 in) long with dar brown seeds.
Acacia cretacea, also known as chalky wattle, is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is endemic to South Australia.