Seeds of South Australia
Synostemon rigens (Euphorbiaceae)
Stiff Spurge
List of species for Synostemon
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Herbarium regions:
Lake Eyre, Gairdner-Torrens, Flinders Ranges, Eastern, Murray
NRM regions:
South Australian Arid Lands, South Australian Murray-Darling Basin
IBRA regions
Olary Spur (FLB03)Flinders Lofty Block
 Rare   (IUCN: RA d(ii))   (Probable Decline)
Northern Flinders (FLB05) 
 Least Concern   [on hill tops]
Central Flinders (FLB06) 
 Near Threatened   [on hill tops]
Arcoona Plateau (GAW04)Gawler
 Vulnerable   (IUCN: VU D2)
Torrens (GAW06) 
 Vulnerable   (IUCN: VU D2)   [outlier, limited habitat]
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 Synostemon]
Distribution:
growing in arid shrubland and Triodia grasslands on rocky slopes of hills and gorges.