Seeds of South Australia
Cassinia laevis (Compositae)
Smooth Cassinia
List of species for Cassinia
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Herbarium regions:
North Western, Gairdner-Torrens, Flinders Ranges, Eastern, Eyre Peninsula, Northern Lofty, Murray, Southern Lofty, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Alinytjara Wilurara, Eyre Peninsula, Northern and Yorke, South Australian Arid Lands, South Australian Murray-Darling Basin, South East
IBRA regions
SUMMARY
Fleurieu (KAN02)Kanmantoo
 Near Threatened   [occurs in northern area]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Vulnerable   (IUCN: VU D2)   [occurs in northern area; could have been introduced]
Broughton (FLB02) 
 Least Concern
Olary Spur (FLB03) 
 Least Concern
Southern Flinders (FLB04) 
 Least Concern
Northern Flinders (FLB05) 
 Least Concern
Central Flinders (FLB06) 
 Least Concern
St Vincent (EYB02)Eyre Yorke Block
 Least Concern
Eyre Hills (EYB03) 
 Rare   (IUCN: RA d(i,ii))
Eyre Mallee (EYB05) 
 Rare   (IUCN: RA d(i,ii))
South Olary Plain (MDD01)Murray Darling Depression
 Rare   (IUCN: RA d(ii))   (Probable Decline)   [edge of range]
Murray Mallee (MDD02) 
 Rare   (IUCN: RA d(ii))   (Probable Decline)
Braemer (MDD07) 
 Least Concern
Murray Scroll Belt (RIV06)Riverina
 Rare   (IUCN: RA d(ii))   (Probable Decline)
Myall Plains (GAW01)Gawler
 Least Concern
Gawler Volcanics (GAW02) 
 Least Concern
Gawler Lakes (GAW03) 
 Rare   (IUCN: RA d(i,ii))
Kingoonya (GAW05) 
 Rare   (IUCN: RA d(i,ii))
Bimbowrie (BHC05)Broken Hill Complex
 Least Concern
Mann-Musgrave Block (CER01)Central Ranges
 Rare   (IUCN: RA d(ii))
IBRA regions
DISPLAY ALL
Fleurieu (KAN02)KanmantooNear Threatened
  [occurs in northern area]
6 of 6 subregionsFlinders Lofty BlockLeast Concern
, Vulnerable
3 of 5 subregionsEyre Yorke BlockLeast Concern
, Rare
3 of 6 subregionsMurray Darling DepressionLeast Concern
, Rare
Murray Scroll Belt (RIV06)RiverinaRare
  (IUCN: RA d(ii))   (Probable Decline)
4 of 8 subregionsGawlerLeast Concern
, Rare
Bimbowrie (BHC05)Broken Hill ComplexLeast Concern
Mann-Musgrave Block (CER01)Central RangesRare
  (IUCN: RA d(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 Cassinia]
Name derivation:
Cassinia named after Alexandre-Henri Gabriel de Cassini (1782-1832), a French botanist who published extensively on the Compositae. Laevis from Latin meaning smooth.
Distribution:
Found in the southern part of South Australia with a disjunct population in the north-west corner, growing in scrub and woodland on stony and sandy soils. Also found in the Northern Territory, Queensland and New South Wales.
Status:
Native. Common in South Australia. Uncommon in the Northern Territory. Common in the other states.
Plant description:
Perennial shrub to 1.5 m high, with a curry-like aroma, stems erect, densely branched with branchlets covered in creamy hairs at first, later brownish, pubescent and roughened by the leaf bases. Leaves spreading, narrowly linear, decurrent, obtuse to mucronulate, straight, to 35 mm long and 1 mm wide, upper surface glabrous, smooth or wrinkled, dark-green, lower surface with dense white hairs, forming a conspicuous line between the revolute margins. Inflorescence a loose spike with white yellow flowers. Flowers most of the year.
Fruit type:
Light creamy-brown loose daisy-head.
Embryo type:
Spatulate.
Seed collecting:
Collect heads that are matured, creamy-brown and contain brown seeds.
Seed cleaning:
Place the heads in a tray for one to two week to dry. Then rub the heads gently with your hands to dislodge the seeds. Use a sieve to separate any unwanted material. Viable seeds will be small and brown. 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 germination:
Seeds are non-dormant, viable seed should germinate readily.