Seeds of South Australia
Maireana appressa (Chenopodiaceae)
Grey Bluebush
List of species for Maireana
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Seed collecting:
March to October
Herbarium regions:
North Western, Lake Eyre, Nullarbor, Gairdner-Torrens, Flinders Ranges, Eastern, Eyre Peninsula, Northern Lofty, Murray
NRM regions:
Eyre Peninsula, Northern and Yorke, South Australian Arid Lands, South Australian Murray-Darling Basin
IBRA regions
SUMMARY
Broughton (FLB02)Flinders Lofty Block
 Least Concern   [edge of range]
Olary Spur (FLB03) 
 Least Concern
Southern Flinders (FLB04) 
 Least Concern
Northern Flinders (FLB05) 
 Least Concern
Central Flinders (FLB06) 
 Near Threatened
St Vincent (EYB02)Eyre Yorke Block
 Least Concern   [edge of range ]
Eyre Hills (EYB03) 
 Rare   (IUCN: RA d(i,ii))   [saline ares, gypsious soils]
Eyre Mallee (EYB05) 
 Rare   (IUCN: RA d(i,ii))   [saline ares, gypsious soils]
South Olary Plain (MDD01)Murray Darling Depression
 Rare   (IUCN: RA d(ii))   [not grazed]
Murray Mallee (MDD02) 
 Rare   (IUCN: RA d(ii))   [not grazed]
Braemer (MDD07) 
 Least Concern
Murray Scroll Belt (RIV06)Riverina
 Least Concern
Myall Plains (GAW01)Gawler
 Near Threatened
Gawler Volcanics (GAW02) 
 Near Threatened   [limited habitat]
Gawler Lakes (GAW03) 
 Near Threatened   [limited habitat]
Arcoona Plateau (GAW04) 
 Near Threatened   [limited habitat]
Kingoonya (GAW05) 
 Rare   (IUCN: RA d(ii))
Torrens (GAW06) 
 Least Concern
Roxby (GAW07) 
 Least Concern
Commonwealth Hill (GAW08) 
 Least Concern
Maralinga (GVD03)Great Victoria Desert
 Near Threatened
Tallaringa (GVD05) 
 Near Threatened   [limited habitat]
Yellabinna (GVD06) 
 Near Threatened
Nullarbor Plain (NUL02)Nullarbor
 Rare   (IUCN: RA d(i,ii))
Yalata (NUL03) 
 Rare   (IUCN: RA d(ii))
Barrier Range (BHC01)Broken Hill Complex
 Least Concern
Barrier Range Outwash (BHC04) 
 Least Concern
Bimbowrie (BHC05) 
 Least Concern
Curnamona (BHC06) 
 Least Concern
Simpson Desert (SSD02)Simpson Strzelecki Dunefields
 Near Threatened   [limited habitat]
Dieri (SSD03) 
 Least Concern
Warriner (SSD04) 
 Least Concern
Strzelecki Desert (SSD05) 
 Least Concern
Breakaways (STP01)Stony Plains
 Least Concern
Oodnadatta (STP02) 
 Least Concern
Murnpeowie (STP03) 
 Least Concern
Macumba (STP05) 
 Least Concern
Witjira (STP06) 
 Least Concern
Baltana (STP07) 
 Least Concern
Sturt Stony Desert (CHC02)Channel Country
 Least Concern
Mann-Musgrave Block (CER01)Central Ranges
 Least Concern
Everard Block (CER03) 
 Least Concern
Tieyon (FIN03)Finke
 Least Concern
Pedirka (FIN04) 
 Near Threatened   [limited habitat]
IBRA regions
DISPLAY ALL
5 of 6 subregionsFlinders Lofty BlockLeast Concern
, Near Threatened
3 of 5 subregionsEyre Yorke BlockLeast Concern
, Rare
3 of 6 subregionsMurray Darling DepressionLeast Concern
, Rare
Murray Scroll Belt (RIV06)RiverinaLeast Concern
8 of 8 subregionsGawlerLeast Concern
, Near Threatened
, Rare
3 of 4 subregionsGreat Victoria DesertNear Threatened
2 of 3 subregionsNullarborRare
4 of 4 subregionsBroken Hill ComplexLeast Concern
4 of 4 subregionsSimpson Strzelecki DunefieldsLeast Concern
, Near Threatened
6 of 7 subregionsStony PlainsLeast Concern
Sturt Stony Desert (CHC02)Channel CountryLeast Concern
2 of 3 subregionsCentral RangesLeast Concern
2 of 2 subregionsFinkeLeast Concern
, Near Threatened
RSCA map:
Regional Species Conservation Assessments per IBRA subregion. Please click the thumbnail map.
AVH map:
Australian distribution map (external link)
SA Census:
Census of South Australian plants (external link)     [genus Maireana]
SA Flora:
Flora of South Australia Edition 5
Name derivation:
'Maireana' after the 19th century Belgium botanist Adolphe Lemaire and Latin 'appressus' closely pressed.
Distribution:
Found on sandy, saline or calcareous soils over most of mainland South Australia except for the Yorke and Fleurieu Peninsulas and the South East Region. Recorded in every mainland state.
Status:
Native, common in South Australia and New South Wales.
Plant description:
Intricately branched shrub 10-60 cm high, loosely white-woolly all over. Leaves linear to narrow-oblong, to 10 mm long, densely hairy. Flowers solitary, bisexual, glabrous. Flowering March - October.
Fruit type:
Fruiting perianth straw-coloured when dry, glabrous to sparsely hairy; tube with a short, hollow stipe-like base; horizontal wing, 10 mm in diameter, with a radial slit
Seed type:
Seed circular, convex brown seed
Embryo type:
Peripheral
Seed collecting:
Collect dry, papery fruits, check that they contain well developed seeds before making a collection. Shake or strip fruits into a vessel.
Seed cleaning:
Remove twigs and other plant material.
Seed viability:
May be low, average viability from 2 collections approx. 30%
Seed germination:
Germination partially inhibited by the fruit coat (perianth). High levels of germination recorded when fruit was removed.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA21000 (53.44 g)3021-May-2007RJB72043
Eyre Peninsula
19-Sep-200810%-18°C
BGA4950 (36.2 g)12-Oct-2012DJD2402
Murray
27-Feb-201447%-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:
DateResultT0T50Pre-treatment | Germination medium | Incubator: Photoperiod / Thermoperiod
Jun-1392%7 d7 d seeds excised from fruit;
1% agar;
Incubated under spring/autumn conditions
Jun-1326%4 d42 d
1% agar with 250 mg/L gibberellic acid (pH 6.5);
Incubated under spring/autumn conditions
Jun-1326%14 dNA
1% agar with 250 mg/L gibberellic acid (pH 6.5);
Incubated under winter conditions
Jun-1324%4 dNA
1% agar;
Incubated under spring/autumn conditions
Jun-1324%14 dNA
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)