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
| Olary Spur (FLB03) | Flinders Lofty Block | Data Deficient |
| Northern Flinders (FLB05) | | Least Concern |
| Central Flinders (FLB06) | | Rare (IUCN: RA d(ii)) (Probable Decline) [edge of range, grazed] |
| South Olary Plain (MDD01) | Murray Darling Depression | Least Concern [prefers red, stony soils] |
| Murray Mallee (MDD02) | | Rare (IUCN: RA d(i,ii)) [Bob C - keep record, widespread spp] |
| Braemer (MDD07) | | Data Deficient |
| Myall Plains (GAW01) | Gawler | Least Concern [increases in mallee after fire] |
| Gawler Volcanics (GAW02) | | Least Concern [increases in mallee after fire] |
| Gawler Lakes (GAW03) | | Least Concern [increases in mallee after fire] |
| Kingoonya (GAW05) | | Least Concern [increases in mallee after fire] |
| Roxby (GAW07) | | Least Concern |
| Commonwealth Hill (GAW08) | | Least Concern |
| Maralinga (GVD03) | Great Victoria Desert | Least Concern [increases in mallee after fire] |
| Kintore (GVD04) | | Near Threatened |
| Tallaringa (GVD05) | | Near Threatened |
| Yellabinna (GVD06) | | Near Threatened [increases in mallee after fire] |
| Nullarbor Plain (NUL02) | Nullarbor | Least Concern [increases in mallee after fire] |
| Yalata (NUL03) | | Least Concern [increases in mallee after fire] |
| Barrier Range (BHC01) | Broken Hill Complex | Data Deficient |
| Breakaways (STP01) | Stony Plains | Least Concern |
| Oodnadatta (STP02) | | Least Concern |
| Macumba (STP05) | | Near Threatened |
| Witjira (STP06) | | Least Concern |
| Baltana (STP07) | | Least Concern |
| Lake Pure (CHC07) | Channel Country | Rare (IUCN: RA d(ii)) |
| Everard Block (CER03) | Central Ranges | Least Concern |
| Tieyon (FIN03) | Finke | Near Threatened |
| 3 of 6 subregions | Flinders Lofty Block | Least Concern , Rare , Data Deficient |
| 3 of 6 subregions | Murray Darling Depression | Least Concern , Rare , Data Deficient |
| 6 of 8 subregions | Gawler | Least Concern |
| 4 of 4 subregions | Great Victoria Desert | Least Concern , Near Threatened |
| 2 of 3 subregions | Nullarbor | Least Concern |
| Barrier Range (BHC01) | Broken Hill Complex | Data Deficient |
| 5 of 7 subregions | Stony Plains | Least Concern , Near Threatened |
| Lake Pure (CHC07) | Channel Country | Rare (IUCN: RA d(ii)) |
| Everard Block (CER03) | Central Ranges | Least Concern |
| Tieyon (FIN03) | Finke | Near Threatened |
Etymology
'Maireana', after the 19th century French botanist, Adolphe Lemaire and 'triptera', three-winged.
Distribution and status
Found in mallee areas growing in heavy slightly saline soil.
Herbarium regions: North Western, Lake Eyre, Gairdner-Torrens, Flinders Ranges, Eastern, Eyre Peninsula, Murray
NRM regions: Alinytjara Wilurara, Eyre Peninsula, South Australian Arid Lands, South Australian Murray-Darling Basin
AVH map: SA distribution map (external link)
Plant description
Compact bluish-green shrub to 50 cm high; glabrous except for pubescence in the leaf axils. Leaves alternate, dense, slender and sub-terete, to 10 mm long. Flowers solitary in leaf axils. Flowering May-September. Fruits are fruiting perianth glabrous, drying to dark brown or black, with a turbinate tube and usually 5 vertical wings, running the length of the tube, alternate to the perianth segments and fusing with the horizontal wing; horizontal wing 8 mm wide, without a radial slit. Seeds are seeds are brown and disc-shaped, up to 1.5 mm diameter with overlapping embryo tip forming a small beak. Seed embryo type is peripheral
Seed collection and propagation
Collect seeds when fruits are brown and papery. Check inside several fruits for the presence of well developed seed before making a collection. Strip or shake fruiting branches into a container. Remove twigs and other plant material.
Germination table:
Display
| Date | Result | T0 | T50 | Pre-treatment | Germination medium | Incubator: Photoperiod / Thermoperiod |
| Apr-14 | 92% | 7 | 7 |
seeds excised from fruit;
1% agar;
Incubated under spring/autumn conditions |
| Apr-14 | 0% | NA | NA |
leached in water 24 h;
1% agar;
Incubated under spring/autumn conditions |
| Apr-14 | 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)
