Seeds of South Australia
Atriplex nummularia ssp. nummularia (Chenopodiaceae)
Tjilyi-tjilyi
List of species for Atriplex
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Seed collecting:
January to December
Herbarium regions:
North Western, Lake Eyre, Gairdner-Torrens, Flinders Ranges, Eastern, Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula
NRM regions:
Alinytjara Wilurara, Eyre Peninsula, Northern and Yorke, South Australian Arid Lands, South Australian Murray-Darling Basin
IBRA regions
SUMMARY
Northern Flinders (FLB05)Flinders Lofty Block
 Rare   (IUCN: RA d(ii))   [edge of range, limited habitat]
Kintore (GVD04)Great Victoria Desert
 Least Concern
Curnamona (BHC06)Broken Hill Complex
 Least Concern   (Probable Increase)
Dieri (SSD03)Simpson Strzelecki Dunefields
 Least Concern
Warriner (SSD04) 
 Least Concern
Strzelecki Desert (SSD05) 
 Least Concern
Breakaways (STP01)Stony Plains
 Near Threatened   [limited habitat]
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
Diamantina-Eyre (CHC04) 
 Least Concern
Coongie (CHC06) 
 Least Concern
Lake Pure (CHC07) 
 Least Concern
Mann-Musgrave Block (CER01)Central Ranges
 Least Concern
Everard Block (CER03) 
 Least Concern
Tieyon (FIN03)Finke
 Least Concern
IBRA regions
DISPLAY ALL
Northern Flinders (FLB05)Flinders Lofty BlockRare
  (IUCN: RA d(ii))   [edge of range, limited habitat]
Kintore (GVD04)Great Victoria DesertLeast Concern
Curnamona (BHC06)Broken Hill ComplexLeast Concern
  (Probable Increase)
3 of 4 subregionsSimpson Strzelecki DunefieldsLeast Concern
6 of 7 subregionsStony PlainsLeast Concern
, Near Threatened
4 of 4 subregionsChannel CountryLeast Concern
2 of 3 subregionsCentral RangesLeast Concern
Tieyon (FIN03)FinkeLeast 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. Nummularia from the Latin 'nummularius' meaning an officer in the mint who tested silver before it was coined and/or 'numus' a silver coin, referring to the round silvery leaves.
Distribution:
Found throughout much of the drier regions of South Australia on heavy soils or flood plains. Also found in Northern Territory, Queensland, New South Wales and Victoria.
Status:
Native. Common in South Australia. Common in other states.
Plant description:
Perennial shrub to 3m high, predominantly dioecious, with lower branches decumbent. Leaves broad-elliptic with the lamina to 35cm long and 4cm wide. Male and female flowers on separate plants. Inflorescences paniculate. Flowering all year round.
Fruit type:
Large pale-brown, papery fruit; orbicular with base truncate or cordate and valves appressed.
Seed type:
Shiny brown, circular reniform seed to 2mm wide.
Embryo type:
Peripheral
Seed collecting:
Collect spongy dried fruit either 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%8d17d 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 201460%22d53d None
70mm glass petri dishes on 1% w/v agar
Incubated under spring/autumn conditions
March 201444%29dNA None
70mm glass petri dishes on 1% w/v 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)