Seeds of South Australia
Atriplex semibaccata (Chenopodiaceae)
Creeping Saltbush
List of species for Atriplex
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Seed collecting:
December to February
Herbarium regions:
Lake Eyre, Flinders Ranges, Eastern, Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula, Southern Lofty, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Eyre Peninsula, Northern and Yorke, South Australian Arid Lands, South Australian Murray-Darling Basin, South East
IBRA regions
SUMMARY
Bridgewater (NCP01)Naracoorte Coastal Plain
 Near Threatened   [used in reveg; could be increasing; tolerates salinity, disturbance]
Tintinara (NCP04) 
 Near Threatened   [undercollected]
Fleurieu (KAN02)Kanmantoo
 Least Concern
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Least Concern   [used in reveg]
Broughton (FLB02) 
 Least Concern
Olary Spur (FLB03) 
 Least Concern
Southern Flinders (FLB04) 
 Least Concern
Northern Flinders (FLB05) 
 Least Concern
Central Flinders (FLB06) 
 Least Concern
Southern Yorke (EYB01)Eyre Yorke Block
 Near Threatened   (Probable Decline)
St Vincent (EYB02) 
 Least Concern   (Probable Decline)
Eyre Hills (EYB03) 
 Least Concern
Talia (EYB04) 
 Near Threatened
Eyre Mallee (EYB05) 
 Near Threatened
Murray Mallee (MDD02)Murray Darling Depression
 Least Concern   [likes clay loams]
Murray Lakes and Coorong (MDD03) 
 Least Concern
Wimmera (MDD05) 
 Near Threatened   [in remnant parks; tolerates grazing]
Braemer (MDD07) 
 Least Concern
Murray Scroll Belt (RIV06)Riverina
 Least Concern   [likes clay loams]
Gawler Lakes (GAW03)Gawler
 Near Threatened
Bimbowrie (BHC05)Broken Hill Complex
 Least Concern
IBRA regions
DISPLAY ALL
2 of 4 subregionsNaracoorte Coastal PlainNear Threatened
Fleurieu (KAN02)KanmantooLeast Concern
6 of 6 subregionsFlinders Lofty BlockLeast Concern
5 of 5 subregionsEyre Yorke BlockLeast Concern
, Near Threatened
4 of 6 subregionsMurray Darling DepressionLeast Concern
, Near Threatened
Murray Scroll Belt (RIV06)RiverinaLeast Concern
  [likes clay loams]
Gawler Lakes (GAW03)GawlerNear Threatened
Bimbowrie (BHC05)Broken Hill ComplexLeast Concern
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. Semibaccata from the Latin 'semi' meaning half and 'baccate' meaning berry like in form, texure or bearing berries; alluding to the round, red berry-like fruit.
Distribution:
A widespread species found throughout most of South Australia except for the very arid regions, usually  on heavy soils, in woodland, saline flats and the edges of salt lakes. Also found in Western Australia, Queensland, New South Wales and Victoria.
Status:
Native. Common in South Australia. Common in other states.
Plant description:
Prostrate or decumbent perennial shrub with slender spreading branches, monoecious. Leaves narrow-elliptic to elliptic, to 30mm long, almost glabrous above, scaly beneath. Male and female flowers on the same plant. Flowers axillary, solitary or in small clusters, cream to light green. Flowering all year round.
Fruit type:
Fruit rhombic to 6mm long, acute, red and succulent when ripe.
Seed type:
Shiny smooth, yellow brown and dark brown, circular reniform seed to 2mm diameter.
Embryo type:
Peripheral.
Seed collecting:
Collect fruits that are red, dried and papery. Fruits can be collected directly from the bush or from the ground underneath.
Seed cleaning:
Place the fruits in a tray and leave to dry for one to two weeks. No cleaning is required if only the fruits are collected. The seed can be stored in the fruit or can be clean further. Rub the fruit gently by hand to dislodge the seeds. Use a sieve to separate the unwanted material. 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.
Germination table:
DateResultT0T50Pre-treatment | Germination medium | Incubator: Photoperiod / Thermoperiod
March 2014100%8d29d None
70mm glass petri dishes on 1% w/v agar
Incubated under winter conditions
March 2014100%8d8d Fruit removed
70mm glass petri dishes on 1% w/v agar
Incubated under winter conditions
March 2014100%8d8d Fruit removed
70mm glass petri dishes on 1% w/v agar
Incubated under spring/autumn conditions
March 201498%8d22d None
70mm glass petri dishes on 1% w/v agar
Incubated under spring/autumn conditions
October 201490%9d9d Soak in 250 mg/L GA3 for 24 hours
1% water agar
Incubated under winter conditions
October 201488%9d9d None
1% water agar
Incubated under spring/autumn conditions
October 201485%2d9d Soak in RO water for 48 hours
1% water agar
Incubated under summer conditions
October 201480%9d9d Soak in 250 mg/L GA3 for 24 hours
1% water agar
Incubated under summer conditions
October 201480%2d9d Soak in RO water for 48 hours
1% water agar
Incubated under winter conditions
October 201478%2d9d Soak in RO water for 48 hours
1% water agar
Incubated under spring/autumn conditions
October 201470%9d9d Soak in 250 mg/L GA3 for 24 hours
1% water agar
Incubated under spring/autumn conditions
October 201468%9d9d None
1% water agar
Incubated under winter conditions
October 201468%9d9d None
1% water agar
Incubated under summer 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)