Seeds of South Australia
Schoenia ayersii (Compositae)
Ayer's Button-daisy
List of species for Schoenia
Display more images
Click on an image to enlarge it
Herbarium regions:
North Western, Lake Eyre, Nullarbor
NRM regions:
Alinytjara Wilurara, South Australian Arid Lands
IBRA regions
Maralinga (GVD03)Great Victoria Desert
 Rare   (IUCN: RA d(ii))   [edge of range]
Kintore (GVD04) 
 Least Concern   [buffel grass potential threat]
Breakaways (STP01)Stony Plains
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Macumba (STP05) 
 Rare   (IUCN: RA d(i,ii))
Witjira (STP06) 
 Rare   (IUCN: RA d(ii))
Mann-Musgrave Block (CER01)Central Ranges
 Least Concern   [buffel grass potential threat]
Watarru (CER02) 
 Least Concern   [buffel grass potential threat]
Everard Block (CER03) 
 Least Concern   [buffel grass potential threat]
Tieyon (FIN03)Finke
 Rare   (IUCN: RA d(i,ii))
Pedirka (FIN04) 
 Rare   (IUCN: RA d(i,ii))
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 Schoenia]
Germination table:
DateResultT0T50Pre-treatment | Germination medium | Incubator: Photoperiod / Thermoperiod
Oct-1586%7 d7 d
1% agar;
Incubated under winter conditions
Oct-1570%7 d7 d 500 mg/L gibberellic acid 48 h;
1% agar;
Incubated under spring/autumn conditions
Oct-1538%7 dNA
1% agar;
Incubated under winter conditions
Oct-1534%7 dNA
1% 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)