Neha Patil (Editor)

Acacia aphylla

Updated on
Share on FacebookTweet on TwitterShare on LinkedInShare on Reddit
Covid-19
Kingdom  Plantae
Family  Fabaceae
Scientific name  Acacia aphylla
Order  Fabales
Genus  Acacia
Rank  Species
Acacia aphylla Australian Seed ACACIA aphylla
Similar  Acacia alata, Acacia ashbyae, Acacia brachystachya, Acacia binervata, Acacia boormanii

Acacia aphylla pruning


Acacia aphylla, commonly known as the leafless rock wattle, twisted desert wattle or live wire, is a species of Acacia which is endemic to an area around Perth in Western Australia.

Contents

Acacia aphylla Acacia Aphylla Off Track ABC Radio National Australian

Description

Acacia aphylla Australian Succulents Acacia aphylla Mimosaceae

It is spiny and leafless erect and widely branching shrub that grows to 0.9 to 3 metres (3 to 10 ft) in height and with a width of approximately 2 metres (7 ft). The generally bright green branchlets are rigid, terete and obscurely ribbed. They are smooth, glaucous, glabrous and coarsely pungent. Unlike most Acacia the phyllodes are absent for A. aphylla'.

Acacia aphylla Australian Seed ACACIA aphylla

The thickened blue-green wiry stems have the ability to photosynthesize like leaves so giving the plant an evolutionary adaptation that greatly reduces the total surface area for water loss through transpiration.

Acacia aphylla Acacia aphylla Maslin FloraBase Flora of Western Australia

It produces yellow spherical flowers between August and October (late winter to mid spring) in its native range. The inflorescences have a simple structure with one per axil. The peduncles are 7 to 10 millimetres (0.28 to 0.39 in) long and glabrous with globular heads. Theyhold 20–30 flowers that are a bright light golden colour. The flowers are 5-merous with free sepals. Seed-pods form later that are linear, 3 to 9 cm (1.2 to 3.5 in) long and 3 to 4 mm (0.12 to 0.16 in) wide containing black seeds that are longitudinal and oblong and about 4 mm (0.2 in) long. Pods are mature from December to March.

Plants are mostly killed by fire but populations will regenerate from the soil seedbank.

Range

Acacia aphylla httpsuploadwikimediaorgwikipediacommonsthu

The shrub has a restricted range and is only found in two areas in the Darling Range about 60 kilometres (37 mi) apart from each other. The areas are both to the east of Perth with one population being found in Hidden Valley area in the Helena River and the other south of Northam in the Clackline Nature Reserve.

Th exact placement of each population is being withheld by the state government for conservation reasons.

Ecology

Commonly found in open forest communities that are dominated by Eucalyptus marginata and Eucalyptus calophylla, or in woodlands where Eucalyptus loxophleba dominates. Species commonly found in the understorey include Grevillea endlicheriana, Hakea petiolaris and Xanthorrhoea preissii. It is generally associated with areas of with laterite and granite outcrops on hillsides, and will grow in rock crevices. It is mostly found to grow in soils that are sandy, loam, clay or gravel and brown or yellow in colour.

Cultivation

A. aphylla is cultivated as a foliage plant, although it is actually a succulent and is adapted to harsh conditions. It grows fast, requires well-drained soils and will tolerate full sun. It can be pruned following flowering and pruning can be harsh, back to approximately 30 centimetres (12 in) from the ground. Regrowth will take place in the next couple of months. It is both drought and frost tolerant can be grown from seed. It produces an abundance of seed during summer which stores well and remains viable for many years. It regenerates poorly in habitat and often there are few or no seedlings to be found. When cultivated, the hard black seeds need to be soaked for 24 hours, with initially boiled hot water, to soften the coating, which usually gives a consistent and early germination of seeds.

History

The species was first described the species in the journal Nuytsia by the botanist Bruce Maslin in 1974. The name ‘aphylla’ in latin means without leaves, due to the absence of phyllodes. A. aphylla was recorded as rare in 1950 and after 1992 it was listed as vulnerable then became protected under the Endangered species Protection Act 1992.

References

Acacia aphylla Wikipedia


Similar Topics
Acacia alata
Acacia ashbyae
Acacia binervata
Topics
 
B
i
Link
H2
L