Acacia extensa
Encyclopedia
Acacia extensa is an erect shrub
Shrub
A shrub or bush is distinguished from a tree by its multiple stems and shorter height, usually under 5–6 m tall. A large number of plants may become either shrubs or trees, depending on the growing conditions they experience...

 that is native to the South West corner of Western Australia
Western Australia
Western Australia is a state of Australia, occupying the entire western third of the Australian continent. It is bounded by the Indian Ocean to the north and west, the Great Australian Bight and Indian Ocean to the south, the Northern Territory to the north-east and South Australia to the south-east...

. This particular species is resistant to dieback
Phytophthora cinnamomi
Phytophthora cinnamomi is a soil-borne water mould that produces an infection which causes a condition in plants called root rot or dieback. The plant pathogen is one of the world's most invasive species and is present in over 70 countries from around the world.- Life cycle and effects on plants :P...

.

Habit

The Wiry Wattle is a perennial evergreen
Evergreen
In botany, an evergreen plant is a plant that has leaves in all seasons. This contrasts with deciduous plants, which completely lose their foliage during the winter or dry season.There are many different kinds of evergreen plants, both trees and shrubs...

 shrub
Shrub
A shrub or bush is distinguished from a tree by its multiple stems and shorter height, usually under 5–6 m tall. A large number of plants may become either shrubs or trees, depending on the growing conditions they experience...

 that grows to a height of 2 metres (7 ft) tall,
although it can grow taller under cultivation.
This occasionally weeping bush produces angled glabrous branchlets that are green with yellowish ribs. The foliage are light green filiform pyllodites that are scattered along the branchlets that they resemble, they are typically 6 centimetres (2 in) to 24 centimetres (9 in) in length and 0.75 millimetre (0.0295275590551181 in) to 2 millimetre (0.078740157480315 in) in width.
A. extensa typically flowers in spring (between August and October) and produces yellow ball shaped blossoms that are generally less than 1 centimetre (0.393700787401575 in) in diameter off short stem stalks called racemes.

Range

A. extensa is found in the South West corner of Western Australia. The species is found as far east as Albany
Albany, Western Australia
Albany is a port city in the Great Southern region of Western Australia, some 418 km SE of Perth, the state capital. As of 2009, Albany's population was estimated at 33,600, making it the 6th-largest city in the state....

 and as far North as Leeman
Leeman, Western Australia
Leeman is a small coastal town in the Shire of Coorow.Land was first surveyed and sub-divided in 1961 and the townsite was gazetted in 1961 as Snag Island, a name that is still in common use...

. This species prefers sandy or sandy lateritic soils generally in damp areas such as along water courses or near lakes and swamps.
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