Seeds of South Australia
Acacia provincialis (Leguminosae)
Swamp Wattle
List of species for Acacia
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Seed collecting:
November to January
Herbarium regions:
Southern Lofty, Kangaroo Island, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Kangaroo Island, South East
IBRA regions
Kangaroo Island (KAN01)Kanmantoo
 Near Threatened   [on creek lines]
Fleurieu (KAN02) 
 Near Threatened   [occurs in wetland habitat/creeklines; restricted habitat that could be drying; P Lang: RA d(ii)]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Near Threatened   [restricted wetland habitat which will dry in future; regenerates easily; P Lang: RA d(ii)]
Murray Mallee (MDD02)Murray Darling Depression
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Murray Lakes and Coorong (MDD03) 
 Rare   (IUCN: RA d(i,ii))   [edge of range]
RSCA map:
Regional Species Conservation Assessments per IBRA subregion. Please click the thumbnail map.
AVH map:
Australian distribution map (external link)
SA Census:
Census of South Australian plants (external link)     [genus Acacia]
Name derivation:
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. Provincialis relates to the description from cultivated specimens grown in France from the Provence Region.
Found in the Mount Lofty Ranges and on Kangaroo Island in South Australia, growing in wet areas in creeks and swamps. Also found in Victoria.
Native. Common in South Australia. Common in Victoria.
Plant description:
Slender, erect to medium-spreading tree to 10 m tall with solitary trunk or often dividing near ground level into several ascending stems; crowns open to bushy. Branchlets reddish brown, often lightly pruinose; prominently flattened and angular, ribbed; often continuous below, decurrent  down the stems at first but soon terete, glabrous. Bark smooth, grey. Leaves variable (according to growth phase of plants, habitat and seasonal conditions) from 100 mm to 150mm long and 4 to 35 mm wide; straight or shallowly recurved, glabrous, blue-green to grey-green. Inflorescences racemose with globular, golden to pale yellow flower-heads.  Flowering between October and December.
Fruit type:
Linear brown pod to 160 mm long and 8 mm wide.
Seed type:
Hard, dark brown to black seed to 6 mm long and 3 mm wide.
Embryo type:
Seed collecting:
Collect mature pods that are turning brown, with hard, dark seeds inside.
Seed cleaning:
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.
Seed viability:
From one collection, the seed viability was high, at 100%.
Seed germination:
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:
LocationNo. of seeds
(weight grams)
of plants
Collection number
Collection location
% ViabilityStorage
24690 (246.93 g)
27900 (279 g)
>10015-Dec-2004MKJ 52
Kangaroo Island
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.