Seeds of South Australia
Crassula decumbens var. decumbens (Crassulaceae)
Spreading Stonecrop
List of species for Crassula
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Seed collecting:
October to December
Herbarium regions:
Flinders Ranges, Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula, Southern Lofty, Kangaroo Island, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Eyre Peninsula, Kangaroo Island, Northern and Yorke, South Australian Arid Lands, South Australian Murray-Darling Basin, South East
IBRA regions
Mount Gambier (SVP02)Southern Volcanic Plain
 Near Threatened
Bridgewater (NCP01)Naracoorte Coastal Plain
 Least Concern
Glenelg Plain (NCP02) 
 Near Threatened
Lucindale (NCP03) 
 Least Concern
Tintinara (NCP04) 
 Least Concern
Kangaroo Island (KAN01)Kanmantoo
 Least Concern
Fleurieu (KAN02) 
 Least Concern
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Least Concern
Broughton (FLB02) 
 Least Concern   [becomes weedy]
Southern Flinders (FLB04) 
 Least Concern   [becomes weedy]
Southern Yorke (EYB01)Eyre Yorke Block
 Least Concern   [becomes weedy]
St Vincent (EYB02) 
 Least Concern   [becomes weedy]
Eyre Hills (EYB03) 
 Least Concern   [in wet depressions or coastal dunes. Needs rainfall]
Talia (EYB04) 
 Rare   (IUCN: RA d(ii))   [in wet depressions or coastal dunes. Needs rainfall]
Eyre Mallee (EYB05) 
 Rare   (IUCN: RA d(ii))   [in wet depressions or coastal dunes. Needs rainfall]
Murray Mallee (MDD02)Murray Darling Depression
 Least Concern
Murray Lakes and Coorong (MDD03) 
 Least Concern
Lowan Mallee (MDD04) 
 Least Concern
Wimmera (MDD05) 
 Least Concern
IBRA regions
Mount Gambier (SVP02)Southern Volcanic PlainNear Threatened
4 of 4 subregionsNaracoorte Coastal PlainLeast Concern
, Near Threatened
2 of 2 subregionsKanmantooLeast Concern
3 of 6 subregionsFlinders Lofty BlockLeast Concern
5 of 5 subregionsEyre Yorke BlockLeast Concern
, Rare
4 of 6 subregionsMurray Darling DepressionLeast 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 Crassula]
Name derivation:
Crassula the diminutive of the Latin 'crassus' meaning thick, alluding to the fleshy leaves and branches. Decumbens from the Latin 'decumbere' meaning to lie down, referring to the habit of the species.
Found in the southern part of South Australia, growing in a wide range of habitats, but usually on seasonally moist soil. Also found in Western Australia, New South Wales, Victoria, Tasmania and other parts of the world.
Native. Common in South Australia. Common in the other States.
Plant description:
Annuals herb with decumbent or erect branches to 15 cm long, little- to much-branched; sometimes rooting at nodes. Leaves linear-lanceolate, to -oblanceolate, to 9 mm long and 1.5 mm wide; acute, rarely obtuse or rounded; dorsiventrally compressed, more or less convex above and usually strongly convex below. Inflorescence terminal with white to cream flowers. Flowering between August and November.
Fruit type:
Small red-brown capsules at terminal of stems.
Seed collecting:
Collect whole plants that are drying off, turning red-brown with mature capsules. These will contain very small brown seeds when rubbed with your fingers.
Seed cleaning:
Place the plants in a tray and leave to dry for two weeks. Then rub the plants gently by hand or with a rubber bung to dislodge the seeds. Use a sieve to separate the unwanted material. Be very careful as the seeds are very small. Store the seeds with a desiccant such as dried silica beads or dry rice, in an air tight container in a cool and dry place.