| Acacia spirorbis | |
|---|---|
|   | |
| 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. spirorbis | 
| Binomial name | |
| Acacia spirorbis | |
|   | |
| Occurrence data from AVH | |
Acacia spirorbis is a tree belonging to the genus Acacia and the subgenus Juliflorae that is native to eastern Australia.
The tree typically grows to a maximum height of 12 m (39 ft) and has slender, glabrous branchlets. [1] Like most species of Acacia it has phyllodes rather than true leaves. The glabrous and dark green coloured phyllodes have a narrowly elliptic shaped and recurved to a sickle shape. They are 9 to 17 cm (3.5 to 6.7 in) in length and have a width of 6 to 16 mm (0.24 to 0.63 in) with two main longitudinal veins that have greater prominence than the others. When it blooms it produces simple inflorescences that occur in pairs in the axils. The cylindrical flower-spikes have a length of 3 to 8 cm (1.2 to 3.1 in) with creamy coloured flowers that occur in interrupted bands. Following flowering flat and spirally coiled seed pods form that have a width of 3.5 to 5 mm (0.14 to 0.20 in) are glabrous and covered in a fine white powder. The seeds inside the pods are arranged longitudinally or slightly obliquely. The shiny dark brown seeds have an oblong shape with a bright yellow aril that is folded many times under the seed. [1]
The species was first formally described by the botanist Jacques Labillardière in 1825 as part of the work Sertum austro-caledonicum. It was reclassified by Leslie Pedley in 1987 as Racosperma spirorbis and then transferred back to genus Acacia in 2006. [2]
There are two subspecies:
It is endemic to the coastal parts of Queensland extending from Townsville in the north down to around MacKay in the south including numerous islands off the coast and a smaller isolated population on Rat Island further south near Rockhampton. The tree is usually situated along the margins of rainforest communities or as a part of Eucalyptus woodlands in drier areas. [1] It is also native to Vanuatu and New Caledonia. [3]

Acacia catenulata, commonly known as bendee, is a tree belonging to the genus Acacia and the subgenus Juliflorae that is endemic to some arid areas in Australia.

Acacia hopperiana is a small tree or shrub belonging to the genus Acacia and the subgenus Juliflorae that is endemic to western Australia.

Acacia lirellata is a shrub belonging to the genus Acacia and the subgenus Juliflorae that is endemic to south western Australia.

Acacia signata is a tree or shrub belonging to the genus Acacia and the subgenus Juliflorae that is endemic to western Australia.

Acacia umbraculiformis, commonly known as western umbrella wattle, is a tree belonging to the genus Acacia and the subgenus Juliflorae native to western Australia.

Acacia leptospermoides is a shrub belonging to the genus Acacia and the subgenus Phyllodineae and is endemic to a large area of 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 sphacelata is a shrub of the genus Acacia and the subgenus Phyllodineae that is endemic to south western Australia.

Acacia inceana is a shrub or tree of the genus Acacia and the subgenus Plurinerves that is endemic to south western Australia.

Acacia juncifolia, commonly known as rush-leaf wattle, is a shrub or tree belonging to the genus Acacia and the subgenus Phyllodineae that is endemic to north eastern Australia.

Acacia pustula is a tree belonging to the genus Acacia and the subgenus Phyllodineae native to north eastern Australia.

Acacia blakei, commonly known as Blake's wattle or Wollomombi wattle, is a shrub belonging to the genus Acacia and the subgenus Juliflorae that is native to north eastern Australia.

Acacia brassii is a shrub belonging to the genus Acacia and the subgenus Juliflorae that is native to north eastern Australia.

Acacia caroleae, also known as Carol's wattle or narrow leaf currawong, is a shrub belonging to the genus Acacia and the subgenus Juliflorae that is native to north eastern Australia.

Acacia cretata is a shrub or tree belonging to the genus Acacia and the subgenus Juliflorae that is native to north eastern Australia.

Acacia sparsiflora, also known as currawong or currawang, is a tree belonging to the genus Acacia and the subgenus Juliflorae that is native to a large area in eastern Australia.

Acacia striatifolia is a shrub or tree belonging to the genus Acacia and the subgenus Juliflorae that is native to north eastern Australia.

Acacia torulosa is a shrub or tree belonging to the genus Acacia and the subgenus Juliflorae that is native to north eastern Australia.

Acacia pycnostachya, also known as Bolivia wattle, is a shrub or tree belonging to the genus Acacia and the subgenus Juliflorae that is native to eastern Australia.

Acacia rhodoxylon, also known as rosewood, ringy rosewood or spear wattle, is a tree belonging to the genus Acacia and the subgenus Juliflorae that is native to north eastern Australia.