Slender Carpet-weed
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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
| Glenelg Plain (NCP02) | Naracoorte Coastal Plain | Vulnerable (IUCN: ) (Probable Decline) |
| Tallaringa (GVD05) | Great Victoria Desert | Rare (IUCN: RA d(i,ii)) [naturally rare, restricted to larger water holes] |
| Curnamona (BHC06) | Broken Hill Complex | Vulnerable (IUCN: VU D2) [undercollected, ephemeral] |
| Macumba (STP05) | Stony Plains | Rare (IUCN: RA d(i,ii)) [naturally rare, restricted to larger water holes] |
| Witjira (STP06) | | Rare (IUCN: RA d(i,ii)) [naturally rare, restricted to larger water holes] |
| Mann-Musgrave Block (CER01) | Central Ranges | Rare (IUCN: RA d(i,ii)) [naturally rare, restricted to larger water holes] |
Botanical art
Kath Alcock painting: 1
Prior names
Glinus oppositifolia, orth.var.
Mollugo spergula
Mollugo oppositifolia
Glinus spergula
Etymology
Glinus from the Greek 'glinos' meaning a plant with sweet sap. May have been a reference to maple. Oppositifolius from the Latin 'oppositus' meaning standing against or opposed and 'folium' meaning a leaf, referring to the leaves arranged opposite each other.
Distribution and status
Found in three disjunct locations in South Australia, in the far north, eastern and Murray River, growing in beds of ephemeral watercourses. Also found in all mainland States. Native. Uncommon in South Australia. Common in the other States.
Herbarium regions: North Western, Lake Eyre, Eastern, Murray, South Eastern
NRM regions: Alinytjara Wilurara, South Australian Arid Lands, South Australian Murray-Darling Basin, South East
AVH map: SA distribution map (external link)
Plant description
Prostrate annual to 50 cm in diameter. Leaves opposite and/or alternate, obovate to oblanceolate, to 30 mm long, glabrous. Flowers in leaf-opposed clusters of 3-6; perianth-segments to 5 mm long, white or pinkish inside. Flowering between January and July. Fruits are brown capsules enclosed in the perianth with 3-valves. Seeds are brown reniform seed to 0.5 mm long and 0.4 mm wide, with tuberculate surface. Seed embryo type is peripheral.
Seed collection and propagation
Collect seeds between April and August. Collect capsules that are maturing, turning brown and contain hard, brown seeds inside. Place the capsules in a tray and leave to dry for one to two weeks. Then rub the capsules gently by hand to dislodge the seeds. Use a sieve to separate the unwanted material. Be careful as the seeds are very small. 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. This species has physiological dormancy and can be difficult to germinate.
| Location | No. of seeds
(weight grams) | Number
of plants | Date
collected | Collection number
Collection location | Date
stored | % Viability | Storage
temperature | | BGA | 31,000 (0.51 g) | 30+ | 11-Jan-2012 | MJT361
Murray | 1-Nov-2012 | 100% | -18°C |
| BGA | 34,000 (0.68 g) | | 5-Feb-2015 | DJD3098
Murray | 1-Jan-2016 | 70% | -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 |
| Jun-12 | 4% | 13 | NA |
1% agar with 250 mg/L gibberellic acid (pH 6.5);
Incubated under spring/autumn conditions |
| Jun-12 | 2% | 20 | NA |
1% agar with 100 mg/L potassium nitrate;
Incubated under spring/autumn conditions |
| Jun-12 | 0% | NA | NA |
1% agar with 100 mg/L potassium nitrate;
Incubated under winter conditions |
| Jun-12 | 0% | NA | NA |
1% agar with 250 mg/L gibberellic acid (pH 6.5);
Incubated under winter conditions |
| Jun-12 | 0% | NA | NA |
1% agar;
Incubated under winter conditions |
| Jun-13 | 0% | NA | NA |
1% agar;
Incubated under spring/autumn 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)
