Seeds of South Australia
Crassula closiana (Crassulaceae)
Red Crassula
List of species for Crassula
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Seed collecting:
October to December
Herbarium regions:
Eyre Peninsula, Northern Lofty, Yorke Peninsula, Southern Lofty, Kangaroo Island, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Eyre Peninsula, Kangaroo Island, Northern and Yorke, South East
IBRA regions
SUMMARY
Bridgewater (NCP01)Naracoorte Coastal Plain
 Least Concern
Glenelg Plain (NCP02) 
 Rare   (IUCN: RA d(i,ii))   [old record]
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) 
 Rare   (IUCN: RA d(ii))
Southern Flinders (FLB04) 
 Rare   (IUCN: RA d(ii))
Southern Yorke (EYB01)Eyre Yorke Block
 Rare   (IUCN: RA d(ii))
St Vincent (EYB02) 
 Rare   (IUCN: RA d(ii))
Eyre Hills (EYB03) 
 Least Concern
Talia (EYB04) 
 Rare   (IUCN: RA d(ii))   [Could be undercollected]
Eyre Mallee (EYB05) 
 Rare   (IUCN: RA d(ii))   [Could be undercollected]
Murray Mallee (MDD02)Murray Darling Depression
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)   [edge of range]
Murray Lakes and Coorong (MDD03) 
 Least Concern
Lowan Mallee (MDD04) 
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Braemer (MDD07) 
 Rare   (IUCN: RA d(ii))
Myall Plains (GAW01)Gawler
 Rare   (IUCN: RA d(ii))   [Could be undercollected]
IBRA regions
DISPLAY ALL
4 of 4 subregionsNaracoorte Coastal PlainLeast Concern
, Rare
2 of 2 subregionsKanmantooLeast Concern
3 of 6 subregionsFlinders Lofty BlockLeast Concern
, Rare
5 of 5 subregionsEyre Yorke BlockLeast Concern
, Rare
4 of 6 subregionsMurray Darling DepressionLeast Concern
, Rare
Myall Plains (GAW01)GawlerRare
  (IUCN: RA d(ii))   [Could be undercollected]
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.
Distribution:
Found in the southern part of South Australia, growing on poor clay and sandy soils in winter-wet areas. Also found in Western Australia, Victoria and Tasmania.
Status:
Native. Common in South Australia. Common in the other states.
Plant description:
Annual herb with erect, smooth, usually wiry branches rarely to 10 cm high. Leaves oblanceolate, rarely elliptic, to 10 mm long and 3.5 mm wide, obtuse or rounded, rarely acute, flat or slightly convex above and somewhat convex below. Flowers white-cream with red tinged, along stems. Flowering between August and October.  
Fruit type:
Small red-brown capsules in clusters along the stems.
Seed type:
Orange-brown short oblong seed to 0.6 mm long and 0.2 mm wide, with a tuberculate surface. 
Seed collecting:
Collect whole plants that are drying off, turning red-brown with mature fruit-spikes. 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.
Seed viability:
From two collections, the seed viability were high, ranging from 85% to 95%.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA10000 (0.1 g)5023-Oct-2007RJB75121
Southern Lofty
19-Sep-200895%-18°C
BGA 
MSB
146000 (3.87 g)
146000 (3.87 g)
501-Oct-2007RJB74636
Southern Lofty
19-Sep-200885%-18°C
Location: BGA — the seeds are stored at the Adelaide Botanic Gardens, MSB — the seeds are stored at the Millennium Seed Bank, Kew, England.
Number of plants: This is the number of plants from which the seeds were collected.
Collection location: The Herbarium of South Australia's region name.
% Viability: Percentage of filled healthy seeds determined by a cut test or x-ray.