Australian Trefoil,
Austral Trefoil
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Regional Species Conservation Assessments per IBRA subregion.
Least concern
Near threatened
Rare
Vulnerable
Endangered
Critically endangered
Extinct
Data deficient
Adelaide
Arkaroola
Ceduna
Coober Pedy
Hawker
Innamincka
Marla
Marree
Mount Gambier
Oodnadatta
Renmark
Wudinna
Keith
Yunta
Display IBRA region text
Bridgewater (NCP01) | Naracoorte Coastal Plain | Least Concern [long-lived seeds] |
Glenelg Plain (NCP02) | | Rare (IUCN: RA d(i,ii)) [long-lived seeds] |
Lucindale (NCP03) | | Rare (IUCN: RA d(ii)) [long-lived seeds] |
Kangaroo Island (KAN01) | Kanmantoo | Near Threatened [comes & goes; likes fire & disturbance] |
Fleurieu (KAN02) | | Near Threatened [comes & goes; likes fire & disturbance] |
Mount Lofty Ranges (FLB01) | Flinders Lofty Block | Near Threatened (Probable Increase) [used in coastal reveg; comes & goes; likes fire & disturbance] |
Broughton (FLB02) | | Vulnerable (IUCN: VU C2a(i)) (Probable Decline) [grazed, roadsides] |
Southern Flinders (FLB04) | | Rare (IUCN: RA d(ii)) |
Northern Flinders (FLB05) | | Rare (IUCN: RA d(ii)) [long-lived seedbank] |
Central Flinders (FLB06) | | Near Threatened [long-lived seedbank] |
Southern Yorke (EYB01) | Eyre Yorke Block | Least Concern |
St Vincent (EYB02) | | Rare (IUCN: RA d(ii)) |
Eyre Hills (EYB03) | | Rare (IUCN: RA d(i,ii)) |
Talia (EYB04) | | Least Concern |
Murray Mallee (MDD02) | Murray Darling Depression | Rare (IUCN: RA d(ii)) |
Murray Lakes and Coorong (MDD03) | | Least Concern [long-lived seeds] |
Wimmera (MDD05) | | Vulnerable (IUCN: VU D2) [long-lived seeds] |
Murray Scroll Belt (RIV06) | Riverina | Rare (IUCN: RA d(ii)) [unusual; outlier] |
Gawler Volcanics (GAW02) | Gawler | Rare (IUCN: RA d(i,ii)) |
3 of 4 subregions | Naracoorte Coastal Plain | Least Concern , Rare |
2 of 2 subregions | Kanmantoo | Near Threatened |
5 of 6 subregions | Flinders Lofty Block | Near Threatened , Rare , Vulnerable |
4 of 5 subregions | Eyre Yorke Block | Least Concern , Rare |
3 of 6 subregions | Murray Darling Depression | Least Concern , Rare , Vulnerable |
Murray Scroll Belt (RIV06) | Riverina | Rare (IUCN: RA d(ii)) [unusual; outlier] |
Gawler Volcanics (GAW02) | Gawler | Rare (IUCN: RA d(i,ii)) |
Botanical art
Kath Alcock paintings: 6
Common names
Australian Trefoil
Austral Trefoil
Distribution and status
Herbarium regions: Flinders Ranges, Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula, Southern Lofty, Kangaroo Island, South Eastern, Green Adelaide
AVH map: SA distribution map (external link)
Location | No. of seeds (weight grams) | Number of plants | Date collected | Collection number Collection location | Date stored | % Viability | Storage temperature | BGA | 740 (1.3 g) | 40 | 1-Feb-2006 | HPV2993 South Eastern | 7-Aug-2006 | 70% | -18°C |
BGA | 1,000 (2.88 g) | 40+ | 30-Dec-2005 | KHB28 Flinders Ranges | 7-Aug-2006 | 95% | -18°C |
BGA | 1,280 (3.2 g) | 20 | 2-Dec-2010 | Kanmantoo Murray | 1-Jan-2012 | 80% | -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.
Germination table:
Display
Date | Result | T0 | T50 | Pre-treatment | Germination medium | Incubator: Photoperiod / Thermoperiod |
Mar-15 | 100% | 7 | 7 |
seed coat nicked with scalpel; 1% agar; Incubated under spring/autumn conditions |
Mar-15 | 100% | 7 | 7 |
seed coat nicked with scalpel; 1% agar; Incubated under winter conditions |
Mar-15 | 14% | 7 | NA |
1% agar; Incubated under spring/autumn conditions |
Mar-15 | 10% | 7 | NA |
1% agar; Incubated under winter conditions |
Result: Maximum percentage of germination observed.
T0: Number of days before first germinant observed.
T50: Number of days to achieve 50% germination.
Pre-treatment: The initial treatment that the seeds received prior to placement on germination media.
Germination medium: The substrate that seeds were placed on for the duration of the germination experiment.
Incubator conditions:
Photoperiod: The duration of light exposure that the seeds were subject to during a 24 hour period.
Thermoperiod: The constant or diurnal temperatures that seeds were subject to during a 24 hour period.
Winter conditions: 15°C 20 h (3am→11pm); 5°C 4 h (11pm→3am) / 10 h light (8am→6pm); 14 h dark (6pm→8am)
Spring/Autumn conditions: 22°C 12 h (8am→8pm); 10°C 12 h (8pm→8am) / 12 h light (8am→8pm); 12 h dark (8pm→8am)
Summer conditions: 30°C 14 h (6am→8pm); 15°C 10 h (8pm→6am) / 14 h light (6am→8pm); 10 h dark (8pm→6am)