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
| Northern Flinders (FLB05) | Flinders Lofty Block | Rare (IUCN: RA d(ii)) [edge of range, limited habitat] |
| Myall Plains (GAW01) | Gawler | Rare (IUCN: RA d(i,ii)) [western limit] |
| Torrens (GAW06) | | Rare (IUCN: RA d(ii)) |
| Roxby (GAW07) | | Rare (IUCN: RA d(ii)) |
| Barrier Range (BHC01) | Broken Hill Complex | Least Concern [outlier] |
| Breakaways (STP01) | Stony Plains | Near Threatened [edge of range] |
| Murnpeowie (STP03) | | Least Concern [grows on heavy clays] |
| Baltana (STP07) | | Least Concern [grows on heavy clays] |
Botanical art
Kath Alcock painting: 1.
Etymology
Dissocarpus from the Greek dissos, double, and carpos, fruit; fontinalis meaning from fountains or springs.
Distribution and status
Mainly found through the stony plains bioregion in South Australia, Native, locally common
Herbarium regions: Lake Eyre, Gairdner-Torrens, Flinders Ranges, Eastern
NRM region: South Australian Arid Lands
AVH map: SA distribution map (external link)
Plant description
Rounded perennial to 60 cm high; woolly branches and slender leaves. Flowers in dense woolly clusters. Fruits are fruit a persistent woody ball with irregularly shaped flattened or spine-like spikes protruding. Seed embryo type is peripheral
Seed collection and propagation
Collect mature fruits from the bush.
| Location | No. of seeds
(weight grams) | Number
of plants | Date
collected | Collection number
Collection location | Date
stored | % Viability | Storage
temperature | BGA
MSB | 1,600 (297 g)
1,600 (297 g) | 50+ | 20-Sep-2016 | JRG444
Lake Eyre | 1-Nov-2017 | 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 |
| May-17 | 57% | 14 | 49 |
seeds excised from fruit;
1% agar;
Incubated under winter conditions |
| May-17 | 3% | 49 | 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)
