Seeds of South Australia
Atriplex angulata (Chenopodiaceae)
Angular Saltbush
List of species for Atriplex
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Seed collecting:
October to January
Herbarium regions:
North Western, Lake Eyre, Gairdner-Torrens, Flinders Ranges, Eastern, Eyre Peninsula, Murray
NRM regions:
Alinytjara Wilurara, Eyre Peninsula, Northern and Yorke, South Australian Arid Lands, South Australian Murray-Darling Basin
IBRA regions
SUMMARY
Olary Spur (FLB03)Flinders Lofty Block
 Least Concern
Southern Flinders (FLB04) 
 Least Concern
Northern Flinders (FLB05) 
 Least Concern
Central Flinders (FLB06) 
 Least Concern
South Olary Plain (MDD01)Murray Darling Depression
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Braemer (MDD07) 
 Least Concern
Myall Plains (GAW01)Gawler
 Rare   (IUCN: RA d(ii))   [southern limit]
Gawler Volcanics (GAW02) 
 Rare   (IUCN: RA d(ii))   [southern limit]
Gawler Lakes (GAW03) 
 Rare   (IUCN: RA d(i,ii))
Arcoona Plateau (GAW04) 
 Least Concern   [limited habitat]
Torrens (GAW06) 
 Least Concern
Roxby (GAW07) 
 Least Concern
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
 Least Concern
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
Peake-Dennison Inlier (STP04) 
 Least Concern
Macumba (STP05) 
 Least Concern
Witjira (STP06) 
 Least Concern
Baltana (STP07) 
 Least Concern
Sturt Stony Desert (CHC02)Channel Country
 Least Concern
Diamantina-Eyre (CHC04) 
 Least Concern
Coongie (CHC06) 
 Least Concern
Lake Pure (CHC07) 
 Least Concern
Tieyon (FIN03)Finke
 Rare   (IUCN: RA d(ii))   [edge of range]
Pedirka (FIN04) 
 Rare   (IUCN: RA d(ii))   [edge of range]
IBRA regions
DISPLAY ALL
4 of 6 subregionsFlinders Lofty BlockLeast Concern
2 of 6 subregionsMurray Darling DepressionLeast Concern
, Rare
6 of 8 subregionsGawlerLeast Concern
, Rare
4 of 4 subregionsBroken Hill ComplexLeast Concern
4 of 4 subregionsSimpson Strzelecki DunefieldsLeast Concern
7 of 7 subregionsStony PlainsLeast Concern
4 of 4 subregionsChannel CountryLeast Concern
2 of 2 subregionsFinkeRare
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 Atriplex]
SA Flora:
Flora of South Australia Edition 5
Name derivation:
Atriplex from the Latin 'atriplexum' meaning an orach, a saltbush, an Ancient Latin name for this plant; angulata meaning angled.
Distribution:
 Found in the northern and central regions of South Australia spreading to the eastern border and into  New South Wales, Queensland and the Northern Territory. 
Status:
Native, common in South Australia, Endangered in Victoria. 
Plant description:
Annual or short lived perennial shrubs to 30 cm. Leaves narrowed at the base to a petiole about half the length of the leaf. Male flowers in short terminal spikes; female flowers in axils; flowering July to October.
Fruit type:
Fruits (bracteoles) fan shaped or kidney shaped; ~10 mm long and wide. 
Seed type:
Brown circular convex seed.
Embryo type:
Peripheral
Seed collecting:
Collect ripe fruits that are pale straw coloured and are easily removed from the bush or found underneath. Check that they contain viable seed.
Seed cleaning:
Remove twigs and other plant material. 
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA20400 (18.5 g)509-May-2007RJB71723
Lake Eyre
19-Sep-200835%-18°C
BGA 
MSB
12500 (55.37 g)
12500 (55.37 g)
20+28-Aug-2008TST412
Lake Eyre
20-Jul-2009100%-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
August 201580%7d7d None
1% water agar
Incubated under spring/autumn conditions
August 201570%7d7d soak in 250 mg/L gibberellic acid for 24 hrs
1% water agar
Incubated under spring/autumn conditions
August 201552%7d7d Leach in RO water for 3 days
1% water 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)