Plants of
South Australia
Acacia spooneri
Leguminosae
Spooner's wattle
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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
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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. Spooneri named in honour of Dr. Anthony G Spooner (1927-1997), a South Australian Physician and field botanist

Distribution and status

Endemic to South Australia and restricted to a few areas in the Flinders Ranges. Native. Rare in South Australia.
Herbarium regions: Flinders Ranges, Northern Lofty
NRM regions: Northern and Yorke, South Australian Arid Lands
AVH map: SA distribution map (external link)

Plant description

Erect but sparsely canopied shrub to 2 m, with weak drooping branches. Flowers are yellow round balls appearing in winter and spring. Fruits are large flat pods to 10 cm long which turn brown and split open when mature. Seeds are hard, dark black semi-flat seeds to 6 mm long and 4 mm wide. Seed embryo type is investing.

Seed collection and propagation

Collect seeds between November and December. Collect pods that are split or turning brown, with hard, black seeds inside. Place the pods into a tray and leave to dry for a week. Rub the dried pods by hand or with a rubber bung to dislodge the seeds. Use a sieve to separate the 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 one collection, the seed viability was high, at 100%. 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:
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LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
9,200 (184.76 g)
9,200 (184.76 g)
100+9-Nov-2006MJT23
Flinders Ranges
1-Aug-2007100%-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.
Germination table:
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