Plants of
South Australia
Acacia sclerophylla var. sclerophylla
Leguminosae
Hard-leaf Wattle
Display all 21 images
Regional Species Conservation Assessments per IBRA subregion.
Least concern
Near threatened
Rare
Vulnerable
Endangered
Critically endangered
Extinct
Data deficient
Adelaide
Arkaroola
Ceduna
Coober Pedy
Hawker
Innamincka
Marla
Marree
Mount Gambier
Oodnadatta
Renmark
Wudinna
Keith
Yunta
Enlarge Map
Copy Map
Copy Map
Display IBRA region text

Botanical art

Kath Alcock paintings: 12.

Etymology

Acacia from the Greek 'akakia' and derived from 'ake' or 'akis' meaning a sharp point or thorn and 'akazo' meaning to sharpen. Dioscorides, the Greek physician and botanist used the word in the 1st century AD for the Egyptian thorn tree, Acacia arabica. Sclerophylla from the Greek 'scleros' meaning hard and 'phyllon' meaning a leaf, referring to the species' hard-textured phyllodes.

Distribution and status

Found from Streaky Bay on the west coast of Eyre Peninsula to Yorke Peninsula, Mount Lofty Ranges, and Murray region, growing on sandy alkaline yellow duplex, red shallow porous loam, brown calcareous earths and dark grey-brown calcareous loam earths. Also found in Western Australia, New South Wales and Victoria. Native. Common in South Australia. Common in the other States.
Herbarium regions: Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula, Southern Lofty, South Eastern
NRM regions: Adelaide and Mount Lofty Ranges, Eyre Peninsula, Northern and Yorke, South Australian Murray-Darling Basin, South East
AVH map: SA distribution map (external link)

Plant description

Low, much-branched, grey bark shrubs spreading to 2 m high, often much wider than high. Leaves thick, straight or slightly curved; narrowly oblanceolate to narrowly oblong-cuneate to 4 cm long and 4 mm wide. Inflorescences simple and axillary, solitary or twin with globular, bright yellow flower-heads. Flowering between July and October. Fruits are long, curved pod to 6cm long and 3 mm wide; finely twisted, raised over the seeds, with margins slightly constricted between seeds. Seeds are dark brown to black, oblong to elliptic seed to 4 mm long and 2 mm wide Seed embryo type is investing.

Seed collection and propagation

Collect seeds between November and January. Collect mature pods that are turning brown, with hard, dark seeds inside. Place the pods in a tray and leave to dry for 1-2 weeks or until the pods begin to split. Then rub the dried pods to dislodge the seeds. Use a sieve to separate any unwanted material. Store the seeds with a desiccant such as dried silica beads or dry rice, in an air tight container in a cool and dry place. From two collections, the seed viability was average to high, ranging from 70% to 90%. This species has physical dormancy that needs to be overcome for the seed to germinate (e.g. nicking or softening the seed coat).

Seeds stored:
  Hide
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA2,000 (7.61 g)1220-Dec-2006Ferris McDonald
Murray
1-Aug-200770%-18°C
BGA 
MSB
5,000 (16.75 g)
5,500 (17.1 g)
4020-Dec-2006DJD735
Murray
1-Aug-200790%-18°C
Location: BGA — the seeds are stored at the Adelaide Botanic Gardens, MSB — the seeds are stored at the Millennium Seed Bank, Kew, England.
Number of plants: This is the number of plants from which the seeds were collected.
Collection location: The Herbarium of South Australia's region name.
% Viability: Percentage of filled healthy seeds determined by a cut test or x-ray.