Seeds of South Australia
Chenopodium desertorum ssp. desertorum (Chenopodiaceae)
Desert Goosefoot
List of species for Chenopodium
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Seed collecting:
January to December
Herbarium regions:
North Western, Lake Eyre, Nullarbor, 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
Fleurieu (KAN02)Kanmantoo
 Near Threatened   [edge of range]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Broughton (FLB02) 
 Least Concern
Olary Spur (FLB03) 
 Least Concern
Southern Flinders (FLB04) 
 Least Concern
Northern Flinders (FLB05) 
 Least Concern
Central Flinders (FLB06) 
 Least Concern
St Vincent (EYB02)Eyre Yorke Block
 Least Concern
Eyre Hills (EYB03) 
 Least Concern
Eyre Mallee (EYB05) 
 Least Concern
South Olary Plain (MDD01)Murray Darling Depression
 Least Concern
Murray Mallee (MDD02) 
 Least Concern
Murray Lakes and Coorong (MDD03) 
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Lowan Mallee (MDD04) 
 Least Concern   [limited to northern section]
Braemer (MDD07) 
 Least Concern
Murray Scroll Belt (RIV06)Riverina
 Least Concern
Myall Plains (GAW01)Gawler
 Least Concern
Gawler Volcanics (GAW02) 
 Least Concern
Gawler Lakes (GAW03) 
 Near Threatened
Arcoona Plateau (GAW04) 
 Rare   (IUCN: RA d(ii))
Kingoonya (GAW05) 
 Least Concern
Roxby (GAW07) 
 Least Concern
Commonwealth Hill (GAW08) 
 Least Concern
Maralinga (GVD03)Great Victoria Desert
 Least Concern
Kintore (GVD04) 
 Least Concern
Tallaringa (GVD05) 
 Least Concern
Yellabinna (GVD06) 
 Least Concern
Carlisle (NUL01)Nullarbor
 Rare   (IUCN: RA d(ii))
Nullarbor Plain (NUL02) 
 Rare   (IUCN: RA d(ii))
Yalata (NUL03) 
 Rare   (IUCN: RA d(ii))
Curnamona (BHC06)Broken Hill Complex
 Least Concern
Breakaways (STP01)Stony Plains
 Near Threatened
Murnpeowie (STP03) 
 Near Threatened
Macumba (STP05) 
 Rare   (IUCN: RA d(i,ii))
Mann-Musgrave Block (CER01)Central Ranges
 Least Concern
Watarru (CER02) 
 Least Concern
Everard Block (CER03) 
 Least Concern
IBRA regions
DISPLAY ALL
Fleurieu (KAN02)KanmantooNear Threatened
  [edge of range]
6 of 6 subregionsFlinders Lofty BlockLeast Concern
, Rare
3 of 5 subregionsEyre Yorke BlockLeast Concern
5 of 6 subregionsMurray Darling DepressionLeast Concern
, Rare
Murray Scroll Belt (RIV06)RiverinaLeast Concern
7 of 8 subregionsGawlerLeast Concern
, Near Threatened
, Rare
4 of 4 subregionsGreat Victoria DesertLeast Concern
3 of 3 subregionsNullarborRare
Curnamona (BHC06)Broken Hill ComplexLeast Concern
3 of 7 subregionsStony PlainsNear Threatened
, Rare
3 of 3 subregionsCentral RangesLeast 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 Chenopodium]
SA Flora:
Flora of South Australia Edition 5
Name derivation:
Chenopodium from the Greek 'chen' meaning goose and 'pod' meaning foot; referring to the shape of the leaves in some species. Desertorum from the Greek 'desertorum' meaning to grow in deserts.
Distribution:
Found across South Australia except on the Yorke Peninsula, Kangaroo Island, southern Mount Lofty Ranges and the South-east, growing in mallee and dry woodland. Also found in Western Australia, Northern Territory, New South Wales and Victoria..
Status:
Native. Common in South Australia. Uncommon in the other states.
Plant description:
Annual or perennial herb, prostrate to erect, much branched herb to 20 cm high. Leaves densely covered when young with colourless glistening transparent  hairs, opposite or alternate, triangular, hastate or elliptic to 8 mm long. Inflorescence congested or lax, narrow-pyramidal or slender, exceeding the terminal leaves, flowers to 2 mm diameter, perianth with a felty indumentum of glistening vesicular hairs. Flowering in summer.
Fruit type:
Fruit enveloped by perianth, pericarp membranous to succulent.
Seed type:
Black globular reniform seed to 1.5 mm diameter, almost smooth to slightly rugulose or striate.
Embryo type:
Peripheral.
Seed collecting:
Collect fruit-heads that are maturing, turning pale brown firm black seeds inside.
Seed cleaning:
Place the fruits-heads in a tray and leave to dry for one to two weeks. Then gently rub the fruits with your fingers or a rubber bung to dislodge the seeds. Use a sieve to seperate the unwanted material. Store the seeds with a desicant such as dried silica beads or dry rice, in an air tight container in a cool and dry place.
Seed germination:
This species has physiological dormancy that needs to be overcome for the seed to germinate (e.g. nicking or softening the seed coat). Germination 89%, seed scarified (covering structure removed and seed coat chipped), on 1% w/v agar supplemented with 101mg/L potassium nitrate, 12/12 dark/light, 16°C. See http://data.kew.org/sid
Germination table:
DateResultT0T50Pre-treatment | Germination medium | Incubator: Photoperiod / Thermoperiod
March 201440%17dNA None
70mm glass petri dishes on 1% w/v agar
Incubated under winter conditions
March 201424%17dNA None
70mm glass petri dishes on 1% w/v 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)