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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
Eyre Hills (EYB03) | Eyre Yorke Block | Rare (IUCN: RA d(ii)) |
Eyre Mallee (EYB05) | | Rare (IUCN: RA d(ii)) |
Myall Plains (GAW01) | Gawler | Rare (IUCN: RA d(ii)) |
Gawler Volcanics (GAW02) | | Rare (IUCN: RA d(ii)) |
Kingoonya (GAW05) | | Rare (IUCN: RA d(ii)) |
Yellabinna (GVD06) | Great Victoria Desert | Rare (IUCN: RA d(ii)) |
Breakaways (STP01) | Stony Plains | Near Threatened [endemic to SA] |
Oodnadatta (STP02) | | Near Threatened [endemic to SA] |
Baltana (STP07) | | Rare (IUCN: RA d(ii)) [endemic to SA] |
Distribution and status
Herbarium regions: Lake Eyre, Gairdner-Torrens
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 MSB | 2,300 (2.75 g) 2,300 (2.75 g) | 40 | 26-Oct-2004 | DJD22 Gairdner-Torrens | 28-Mar-2006 | 100% | -18°C |
BGA MSB | 7,200 (8 g) 2,000 (2.22 g) | 100+ | 5-Oct-2010 | DJD1872 Lake Eyre | 1-Jan-2012 | 85% | -18°C |
BGA MSB | 1,800 (2.78 g) 1,800 (2.78 g) | 100+ | 2-Nov-2013 | DJD2799 Lake Eyre | 24-Mar-2015 | 100% | -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 |
Oct-14 | 93% | 9 | 9 |
500 mg/L gibberellic acid 48 h; 1% agar; Incubated under winter conditions |
Sep-14 | 72% | 9 | 9 |
leached in water 4 d, 500 mg/L gibberellic acid 48 h; 1% agar; Incubated under winter conditions |
Oct-14 | 60% | 9 | 9 |
leached in water 4 d; 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)