Acacia cowleana, Halls Creek Wattle, is a northern Australian native shrub. It is a flowering plant with yellow flowers that only open in winter. Its origin is the Northern Australia's dry tropics. It belongs to the genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 of Acacia

Acacia

Acacia is a genus of shrubs and trees belonging to the subfamily Mimosoideae of the family Fabaceae, first described in Africa by the Swedish botanist Carl Linnaeus in 1773. Many non-Australian species tend to be thorny, whereas the majority of Australian acacias are not...

.

Appearance

It is a small tree of height 1–7 metres (6–12 feet) with large grey phyllodes and yellow rod
flowers. Its bark is fibrous. The phyllodes are 80 to 200 mm long by 10–30 mm wide and curved.

Growth

The shrub grows in woodlands with spinifex

Triodia (plant genus)

Triodia is a large genus of hummock-forming grass endemic to Australia; they are commonly known as spinifex, although they are not a part of the coastal genus Spinifex. There are currently 64 recognised species...

 at Beulah Station near Enngonia. Its growth is medium-fast. It easily grows from seed but has a short life span. It is a reliable shrub for temperate to arid climates in reasonably well drained soils. Though not generally considered to be endangered, the species is regarded as rare in New South Wales

New South Wales

New South Wales is a state of :Australia, located in the east of the country. It is bordered by Queensland, Victoria and South Australia to the north, south and west respectively. To the east, the state is bordered by the Tasman Sea, which forms part of the Pacific Ocean. New South Wales...

. It is not commonly cultivated, though it is reported to be grown in California.