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 |
| 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)) |
| 3 of 4 subregions | Naracoorte Coastal Plain | Least Concern |
| 2 of 2 subregions | Kanmantoo | Least Concern , Rare |
| 3 of 6 subregions | Flinders Lofty Block | Near Threatened , Rare |
| 5 of 5 subregions | Eyre Yorke Block | Least Concern |
| 4 of 6 subregions | Murray Darling Depression | Least Concern , Rare |
| Nullarbor Plain (NUL02) | Nullarbor | Rare (IUCN: RA d(i,ii)) |
| Hampton (HAM01) | Hampton | Rare (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] |
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Name derivation:
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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. |
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Distribution:
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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. |
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Status:
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Native. Common in South Australia. Common in the other states. |
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Plant description:
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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. |
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Fruit type:
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Long, smooth or finely striate, dark brown pod to 7 cm long and 5 mm wide, breaking readily. |
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Seed type:
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Hard, pale brown, elliptical to ovoid seed to 5 mm long and 3 mm wide. |
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Embryo type:
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Investing. |
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Seed collecting:
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Collect mature pods that are turning brown, with hard, dark seeds inside. |
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Seed cleaning:
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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. |
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Seed viability:
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From three collections, the seed viability were high, ranging from 90% to 100%. |
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Seed germination:
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This species has physical dormancy that needs to be overcome for the seed to germinate (e.g. nicking or softening the seed coat). |
| Location | No. of seeds (weight grams) | Number of plants | Date collected | Collection number Collection location | Date stored | % Viability | Storage temperature |
|---|---|---|---|---|---|---|---|
| BGA | 6800 (81.55 g) | 4 | 30-Dec-2005 | KHB032 Flinders Ranges | 1-Aug-2006 | 100% | -18°C |
| BGA MSB | 3200 (78.56 g) 3200 (78.56 g) | 25+ | 20-Dec-2005 | KHB022 Southern Lofty | 1-Aug-2006 | 95% | -18°C |
| BGA | 2200 (43.48 g) | 4 | 24-Dec-2005 | KHB026 Murray | 1-Aug-2006 | 90% | -18°C |
