Seeds of South Australia
Acacia ligulata (Leguminosae)
Dune Wattle
List of species for Acacia
Click on an image to enlarge it
Seed collecting:
December to January
Herbarium regions:
North Western, Lake Eyre, Nullarbor, Gairdner-Torrens, Flinders Ranges, Eastern, Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula
NRM regions:
Adelaide and Mount Lofty Ranges, Alinytjara Wilurara, Eyre Peninsula, Northern and Yorke, South Australian Arid Lands, South Australian Murray-Darling Basin
IBRA regions
SUMMARY
Tintinara (NCP04)Naracoorte Coastal Plain
 Least Concern   [edge of range]
Fleurieu (KAN02)Kanmantoo
 Rare   (IUCN: RA d(ii))   [edge of range; severely impacted by past clearance]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Rare   (IUCN: RA a)   (Probable Decline)   [only in remnant sandy patches of habitat]
Broughton (FLB02) 
 Least Concern
Olary Spur (FLB03) 
 Least Concern
Southern Flinders (FLB04) 
 Least Concern
Northern Flinders (FLB05) 
 Least Concern
Central Flinders (FLB06) 
 Least Concern
Southern Yorke (EYB01)Eyre Yorke Block
 Least Concern   [some records could be A. cupularis. A ligulata hybridises with A cupularis]
St Vincent (EYB02) 
 Least Concern
Eyre Hills (EYB03) 
 Least Concern   [some sthn records prob cupularis]
Talia (EYB04) 
 Least Concern
Eyre Mallee (EYB05) 
 Least Concern
South Olary Plain (MDD01)Murray Darling Depression
 Least Concern   (Probable Increase)   [increases in degraded areas]
Murray Mallee (MDD02) 
 Least Concern   (Probable Increase)   [increases in degraded areas]
Murray Lakes and Coorong (MDD03) 
 Least Concern   [possibly A cupularis records]
Lowan Mallee (MDD04) 
 Least Concern   (Probable Increase)   [increases in degraded areas]
Murray Scroll Belt (RIV06)Riverina
 Least Concern   (Probable Increase)   [increases in degraded areas]
Myall Plains (GAW01)Gawler
 Least Concern
Gawler Volcanics (GAW02) 
 Least Concern
Gawler Lakes (GAW03) 
 Least Concern
Arcoona Plateau (GAW04) 
 Least Concern
Kingoonya (GAW05) 
 Least Concern
Torrens (GAW06) 
 Least Concern
Roxby (GAW07) 
 Least Concern
Commonwealth Hill (GAW08) 
 Least Concern
Maralinga (GVD03)Great Victoria Desert
 Least Concern
Kintore (GVD04) 
 Least Concern
Tallaringa (GVD05) 
 Least Concern
Yellabinna (GVD06) 
 Least Concern
Carlisle (NUL01)Nullarbor
 Least Concern
Nullarbor Plain (NUL02) 
 Least Concern
Yalata (NUL03) 
 Least Concern
Barrier Range Outwash (BHC04)Broken Hill Complex
 Least Concern
Bimbowrie (BHC05) 
 Least Concern
Curnamona (BHC06) 
 Least Concern
Simpson Desert (SSD02)Simpson Strzelecki Dunefields
 Least Concern
Dieri (SSD03) 
 Least Concern
Warriner (SSD04) 
 Least Concern
Strzelecki Desert (SSD05) 
 Least Concern
Breakaways (STP01)Stony Plains
 Near Threatened
Oodnadatta (STP02) 
 Least Concern
Murnpeowie (STP03) 
 Least Concern
Peake-Dennison Inlier (STP04) 
 Least Concern
Macumba (STP05) 
 Least Concern
Witjira (STP06) 
 Least Concern
Baltana (STP07) 
 Least Concern
Sturt Stony Desert (CHC02)Channel Country
 Least Concern
Diamantina-Eyre (CHC04) 
 Least Concern
Coongie (CHC06) 
 Least Concern
Lake Pure (CHC07) 
 Least Concern
Mann-Musgrave Block (CER01)Central Ranges
 Least Concern
Watarru (CER02) 
 Least Concern
Everard Block (CER03) 
 Least Concern
Tieyon (FIN03)Finke
 Least Concern
Pedirka (FIN04) 
 Least Concern
IBRA regions
DISPLAY ALL
Tintinara (NCP04)Naracoorte Coastal PlainLeast Concern
  [edge of range]
Fleurieu (KAN02)KanmantooRare
  (IUCN: RA d(ii))   [edge of range; severely impacted by past clearance]
6 of 6 subregionsFlinders Lofty BlockLeast Concern
, Rare
5 of 5 subregionsEyre Yorke BlockLeast Concern
4 of 6 subregionsMurray Darling DepressionLeast Concern
Murray Scroll Belt (RIV06)RiverinaLeast Concern
  (Probable Increase)   [increases in degraded areas]
8 of 8 subregionsGawlerLeast Concern
4 of 4 subregionsGreat Victoria DesertLeast Concern
3 of 3 subregionsNullarborLeast Concern
3 of 4 subregionsBroken Hill ComplexLeast Concern
4 of 4 subregionsSimpson Strzelecki DunefieldsLeast Concern
7 of 7 subregionsStony PlainsLeast Concern
, Near Threatened
4 of 4 subregionsChannel CountryLeast Concern
3 of 3 subregionsCentral RangesLeast Concern
2 of 2 subregionsFinkeLeast Concern
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. Ligulata from the Latin 'ligula' meaning a little tongue.
Distribution:
Widespread and scattered across South Australia except for the southern Mount Lofty Ranges, Kangaroo Island and the South-east, where they have been introduced. Also found in all other mainland States.
Status:
Native. Common in South Australia. Common in the other States.
Plant description:
Bushy, spreading, more or less rounded, compact shrubs to 5 m high.  Branches slightly angular or ribbed, light green, smooth. Leaves linear or linear-oblong to 9 cm long and 10 mm across, flat, rather thick; wrinkled when dry, with yellowish vein-like margins. One gland at the apex below the point and one on the upper margin below the centre towards the base. Inflorescences axillary and solitary or mostly in racemes with globular, bright yellow flower-heads. Flowering betwen August and November.
Fruit type:
Hard, woody, light brown, linear pod to 10 cm long and 10 mm wide with a thick margin, more or less constricted between seeds, readily breaking into 1-seeded segments.
Seed type:
Hard, black, semi-flat ellipsoid seed to 5 mm long and 3 mm wide with a scarlet aril.
Embryo type:
Investing.
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 90%.
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)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
7700 (243 g)
6570 (207 g)
40-5012-Jan-2006DDC1440
Flinders Ranges
1-Aug-200690%-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.