Seeds of South Australia
Euphorbia wheeleri (Euphorbiaceae)
Wheeler's Spurge
List of species for Euphorbia
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Herbarium regions:
North Western, Lake Eyre, Gairdner-Torrens, Flinders Ranges
NRM regions:
Alinytjara Wilurara, South Australian Arid Lands
IBRA regions
SUMMARY
Northern Flinders (FLB05)Flinders Lofty Block
 Rare   (IUCN: RA d(i,ii))
Arcoona Plateau (GAW04)Gawler
 Rare   (IUCN: RA d(i,ii))   [sand dune species]
Torrens (GAW06) 
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Roxby (GAW07) 
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Maralinga (GVD03)Great Victoria Desert
 Least Concern   [sand dune species]
Dieri (SSD03)Simpson Strzelecki Dunefields
 Least Concern
Warriner (SSD04) 
 Rare   (IUCN: RA d(i,ii))
Strzelecki Desert (SSD05) 
 Least Concern
Murnpeowie (STP03)Stony Plains
 Rare   (IUCN: RA d(ii))
Witjira (STP06) 
 Least Concern
Sturt Stony Desert (CHC02)Channel Country
 Least Concern
Diamantina-Eyre (CHC04) 
 Least Concern
Coongie (CHC06) 
 Least Concern
Lake Pure (CHC07) 
 Least Concern
Pedirka (FIN04)Finke
 Near Threatened   [trampling a threat]
IBRA regions
DISPLAY ALL
Northern Flinders (FLB05)Flinders Lofty BlockRare
  (IUCN: RA d(i,ii))
3 of 8 subregionsGawlerRare
Maralinga (GVD03)Great Victoria DesertLeast Concern
  [sand dune species]
3 of 4 subregionsSimpson Strzelecki DunefieldsLeast Concern
, Rare
2 of 7 subregionsStony PlainsLeast Concern
, Rare
4 of 4 subregionsChannel CountryLeast Concern
Pedirka (FIN04)FinkeNear Threatened
  [trampling a threat]
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 Euphorbia]
Germination table:
DateResultT0T50Pre-treatment | Germination medium | Incubator: Photoperiod / Thermoperiod
Jul-1780%1414 500 mg/L gibberellic acid for 24 h;
1% agar;
Incubated under spring/autumn conditions
Jul-1774%1414 500 mg/L gibberellic acid for 24 h;
1% agar;
Incubated under winter conditions
Jul-1714%14NA
1% agar;
Incubated under spring/autumn conditions
Jul-170%NANA
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)