Seeds of South Australia
Acacia euthycarpa (Leguminosae)
Wallowa
List of species for Acacia
Display more images
Click on an image to enlarge it
Seed collecting:
October to December
Herbarium regions:
Gairdner-Torrens, Eyre Peninsula, Northern Lofty, Murray, Southern Lofty, Kangaroo Island, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Eyre Peninsula, Kangaroo Island, South Australian Arid Lands, South Australian Murray-Darling Basin, South East
IBRA regions
SUMMARY
Lucindale (NCP03)Naracoorte Coastal Plain
 Rare   (IUCN: RA d(i,ii))   [edge of range; some doubt if it occurs this far south]
Kangaroo Island (KAN01)Kanmantoo
 Rare   (IUCN: RA d(ii))   [some populations in reserves]
Fleurieu (KAN02) 
 Near Threatened   [persists on roadsides]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Rare   (IUCN: RA d(ii))   [occurs in northern half; doing well in reserves; a few taxa involved]
Eyre Hills (EYB03)Eyre Yorke Block
 Least Concern   [taxo issues - could be 3-4 taxa]
Talia (EYB04) 
 Least Concern   [taxo issues - could be 3-4 taxa]
Eyre Mallee (EYB05) 
 Least Concern   [taxo issues - could be 3-4 taxa]
Murray Mallee (MDD02)Murray Darling Depression
 Least Concern   [taxo issues - some records west of Murray could be other spp]
Murray Lakes and Coorong (MDD03) 
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)   [edge of range, limited habitat]
Lowan Mallee (MDD04) 
 Least Concern
Myall Plains (GAW01)Gawler
 Least Concern   [taxo issues - could be 3-4 taxa]
Gawler Volcanics (GAW02) 
 Least Concern   [taxo issues - could be 3-4 taxa]
Kingoonya (GAW05) 
 Critically Endangered   (IUCN: CR D)   [Mt Finke]
IBRA regions
DISPLAY ALL
Lucindale (NCP03)Naracoorte Coastal PlainRare
  (IUCN: RA d(i,ii))   [edge of range; some doubt if it occurs this far south]
2 of 2 subregionsKanmantooNear Threatened
, Rare
Mount Lofty Ranges (FLB01)Flinders Lofty BlockRare
  (IUCN: RA d(ii))   [occurs in northern half; doing well in reserves; a few taxa involved]
3 of 5 subregionsEyre Yorke BlockLeast Concern
3 of 6 subregionsMurray Darling DepressionLeast Concern
, Rare
3 of 8 subregionsGawlerLeast Concern
, Critically Endangered
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. Euthycarpa from the Greek 'euthus' meaning straight and 'karpos' meaning fruit, referring to its straight sides.
Distribution:
Found in the lower region of South Australia from Mount Finke, Gawler Ranges, Eyre Peninsula, Kangaroo Island, the Barossa, south to Goolwa, and eastwards through the Murray Mallee. Also found in Victoria.
Status:
Native. Common in South Australia. Common in Victoria.
Plant description:
Shrub to 4 m tall, occasionally a small tree to 10 m. New shoots glabrous. Leaves narrowly linear to oblanceolate to 100 mm long and 6 mm wide, flat to terete with a curved point. Usually green to grey-green glabrous, sometimes scurfy.  Inflorescences axillary racemes with 2–4 globular, golden flower-heads.
Fruit type:
Long, straight pod to 15 cm long and 7 mm wide.
Seed type:
Hard, dark brown to black, ovoid to ellipsoid seed to 6 mm long to 2.5 mm wide.
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 three collections, the seed viability was high, ranging from 85% to 95%.
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
9402
9402
2026-Nov-2003MKJ 6
Murray
1-Sep-200490%+5°C, -18°C
BGA 
MSB
13800 (220.36 g)
13900 (223 g)
>609-Nov-2004MKJ40
Eyre Peninsula
31-Mar-200695%-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.