Seeds of South Australia
Acacia cupularis (Leguminosae)
Coast Umbrella-bush
List of species for Acacia
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Seed collecting:
November to January
Herbarium regions:
Nullarbor, Flinders Ranges, Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula, Southern Lofty, Kangaroo Island, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Alinytjara Wilurara, Eyre Peninsula, Kangaroo Island, Northern and Yorke, South Australian Arid Lands, South Australian Murray-Darling Basin, South East
IBRA regions
SUMMARY
Bridgewater (NCP01)Naracoorte Coastal Plain
 Least Concern
Lucindale (NCP03) 
 Least Concern
Tintinara (NCP04) 
 Least Concern
Kangaroo Island (KAN01)Kanmantoo
 Least Concern
Fleurieu (KAN02) 
 Rare   (IUCN: RA d(ii))   [lots in Newland Head]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Rare   (IUCN: RA d(ii))   [mainly coastal; used in reveg]
Broughton (FLB02) 
 Near Threatened   (Probable Decline)   [relics]
Southern Flinders (FLB04) 
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)   [isolated pop.]
Southern Yorke (EYB01)Eyre Yorke Block
 Least Concern
St Vincent (EYB02) 
 Least Concern   (Probable Decline)   [hybridising with A. ligulata]
Eyre Hills (EYB03) 
 Least Concern
Talia (EYB04) 
 Least Concern
Eyre Mallee (EYB05) 
 Least Concern
Murray Mallee (MDD02)Murray Darling Depression
 Least Concern   [edge of range; coastal spp]
Murray Lakes and Coorong (MDD03) 
 Least Concern
Lowan Mallee (MDD04) 
 Least Concern   [edge of range; likes fire]
Wimmera (MDD05) 
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)
Nullarbor Plain (NUL02)Nullarbor
 Rare   (IUCN: RA d(i,ii))
Hampton (HAM01)Hampton
 Rare   (IUCN: RA d(i,ii))
IBRA regions
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3 of 4 subregionsNaracoorte Coastal PlainLeast Concern
2 of 2 subregionsKanmantooLeast Concern
, Rare
3 of 6 subregionsFlinders Lofty BlockNear Threatened
, Rare
5 of 5 subregionsEyre Yorke BlockLeast Concern
4 of 6 subregionsMurray Darling DepressionLeast Concern
, Rare
Nullarbor Plain (NUL02)NullarborRare
  (IUCN: RA d(i,ii))
Hampton (HAM01)HamptonRare
  (IUCN: RA d(i,ii))
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. Cupularis from the Latin 'cupularis' meaning a little cup, provided with or subtended by a cupule.
Distribution:
Found in sub-coastal regions of South Australia from the west coast, southern Eyre Peninsula, Yorke Peninsula, Adelaide plains, Fleurieu Peninsula, the eastern end of Kangaroo Island, and the Murray lakes to the South East, as far inland as Bordertown. Also found in Western Australia and Victoria.
Status:
Native. Common in South Australia. Common in the other states.
Plant description:
Rounded shrubs to 2 m high and  wide, glabrous;, older stems grey smooth, branchlets mostly dark red-brown, often slightly pruinose . Leaves  erect, glaucous to dark green, narrowly linear to 7 cm long and 4 mm wide, more or less thick, finely wrinkled when dry, flat, straight. Inflorescences axillary raceme with 2-3 globular, golden-yellow flower-heads. Flowering between August and November.
Fruit type:
Long, smooth or finely striate, dark brown pod to 7 cm long and 5 mm wide, breaking readily.
Seed type:
Hard, pale brown, elliptical to ovoid seed to 5 mm long and 3 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 were high, ranging from 90% to 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)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA6800 (81.55 g)430-Dec-2005KHB032
Flinders Ranges
1-Aug-2006100%-18°C
BGA 
MSB
3200 (78.56 g)
3200 (78.56 g)
25+20-Dec-2005KHB022
Southern Lofty
1-Aug-200695%-18°C
BGA2200 (43.48 g)424-Dec-2005KHB026
Murray
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.