Seeds of South Australia
Rhagodia preissii ssp. preissii (Chenopodiaceae)
Green Saltbush
List of species for Rhagodia
Display more images
Click on an image to enlarge it
Seed collecting:
September to December
Herbarium regions:
North Western, Nullarbor, Gairdner-Torrens, Flinders Ranges, 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
Southern Flinders (FLB04)Flinders Lofty Block
 Least Concern
Southern Yorke (EYB01)Eyre Yorke Block
 Near Threatened   (Probable Decline)
St Vincent (EYB02) 
 Least Concern
Eyre Hills (EYB03) 
 Least Concern
Talia (EYB04) 
 Least Concern
Eyre Mallee (EYB05) 
 Least Concern
South Olary Plain (MDD01)Murray Darling Depression
 Rare   (IUCN: RA d(i,ii))   [outlier]
Murray Mallee (MDD02) 
 Least Concern
Myall Plains (GAW01)Gawler
 Least Concern
Gawler Volcanics (GAW02) 
 Least Concern
Kingoonya (GAW05) 
 Least Concern
Commonwealth Hill (GAW08) 
 Near Threatened   [northern edge of range; likes mallee]
Maralinga (GVD03)Great Victoria Desert
 Least Concern
Yellabinna (GVD06) 
 Least Concern
Carlisle (NUL01)Nullarbor
 Least Concern
Nullarbor Plain (NUL02) 
 Rare   (IUCN: RA d(ii))
Yalata (NUL03) 
 Least Concern
IBRA regions
DISPLAY ALL
Southern Flinders (FLB04)Flinders Lofty BlockLeast Concern
5 of 5 subregionsEyre Yorke BlockLeast Concern
, Near Threatened
2 of 6 subregionsMurray Darling DepressionLeast Concern
, Rare
4 of 8 subregionsGawlerLeast Concern
, Near Threatened
2 of 4 subregionsGreat Victoria DesertLeast Concern
3 of 3 subregionsNullarborLeast Concern
, Rare
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 Rhagodia]
SA Flora:
Flora of South Australia Edition 5
Name derivation:
Greek 'rhagos' berry, 'rhagodes' resembling berries and 'preissii' after the 19th century Australian plant collector Johann August Ludwig Preiss
Distribution:
Found on coastal sand dunes, limestone, red sand, loam, clay, sandy clay, sometimes saline soils.
Plant description:
Spreading shrub, 0.6-2 m high. Leaves linear to narrowly obovate, leathery, 3-4cm long. Inflorescence a pyramidal panicle 5 cm long; flowers spherical, 1 mm in diameter, green, yellow, white. Flowering June - December.
Fruit type:
Berry depressed-spherical, 3 mm, red, fleshy when mature
Seed type:
Seed, black, depressed-globose, 1.5 mm in diameter, testa with faint radial ribbing
Embryo type:
Peripheral
Seed collecting:
Collect when fruits are red and fleshy. Dry fruits thoroughly, as they are prone to rotting.
Seed germination:
Germination 80% on 1% w/v agar, 8/16 dark/light, 20°C. See http://data.kew.org/sid
Germination table:
DateResultT0T50Pre-treatment | Germination medium | Incubator: Photoperiod / Thermoperiod
Jun-0581%7 d14 d
filter paper over moist sponge;
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)