Seeds of South Australia
Euchiton sphaericus (Compositae)
Star Cudweed
List of species for Euchiton
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Seed collecting:
January to December
Herbarium regions:
North Western, Lake Eyre, Gairdner-Torrens, Flinders Ranges, Eastern, Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula, Southern Lofty, Kangaroo Island, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Alinytjara Wilurara, Eyre Peninsula, Kangaroo Island, Northern and Yorke, South Australian Arid Lands, South Australian Murray-Darling Basin, South East
IBRA regions
SUMMARY
Mount Gambier (SVP02)Southern Volcanic Plain
 Rare   (IUCN: RA d(ii))
Bridgewater (NCP01)Naracoorte Coastal Plain
 Rare   (IUCN: RA d(ii))
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   (Probable Decline)
Olary Spur (FLB03) 
 Least Concern   (Probable Decline)
Southern Flinders (FLB04) 
 Least Concern   (Probable Decline)
Northern Flinders (FLB05) 
 Least Concern
Central Flinders (FLB06) 
 Least Concern
Southern Yorke (EYB01)Eyre Yorke Block
 Rare   (IUCN: RA b)   (Definite Decline)
St Vincent (EYB02) 
 Least Concern   (Probable Decline)
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))   [localised habitat]
Murray Mallee (MDD02) 
 Least Concern   [should be more records]
Murray Lakes and Coorong (MDD03) 
 Near Threatened   [comes up in disturbed areas]
Lowan Mallee (MDD04) 
 Least Concern   [should be more records]
Wimmera (MDD05) 
 Rare   (IUCN: RA d(i,ii))
Murray Scroll Belt (RIV06)Riverina
 Least Concern   [should be more records]
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))
Kintore (GVD04)Great Victoria Desert
 Least Concern
Yellabinna (GVD06) 
 Rare   (IUCN: RA d(i,ii))
Barrier Range (BHC01)Broken Hill Complex
 Least Concern   (Probable Decline)
Bimbowrie (BHC05) 
 Least Concern   (Probable Decline)
Breakaways (STP01)Stony Plains
 Near Threatened   [edge of range]
Coongie (CHC06)Channel Country
 Rare   (IUCN: RA d(i,ii))
Mann-Musgrave Block (CER01)Central Ranges
 Least Concern
Watarru (CER02) 
 Least Concern
Everard Block (CER03) 
 Least Concern
Tieyon (FIN03)Finke
 Near Threatened   [edge of range]
IBRA regions
DISPLAY ALL
Mount Gambier (SVP02)Southern Volcanic PlainRare
  (IUCN: RA d(ii))
4 of 4 subregionsNaracoorte Coastal PlainLeast Concern
, Near Threatened
, Rare
2 of 2 subregionsKanmantooLeast Concern
6 of 6 subregionsFlinders Lofty BlockLeast Concern
5 of 5 subregionsEyre Yorke BlockLeast Concern
, Rare
5 of 6 subregionsMurray Darling DepressionLeast Concern
, Near Threatened
, Rare
Murray Scroll Belt (RIV06)RiverinaLeast Concern
  [should be more records]
4 of 8 subregionsGawlerLeast Concern
, Rare
2 of 4 subregionsGreat Victoria DesertLeast Concern
, Rare
2 of 4 subregionsBroken Hill ComplexLeast Concern
Breakaways (STP01)Stony PlainsNear Threatened
  [edge of range]
Coongie (CHC06)Channel CountryRare
  (IUCN: RA d(i,ii))
3 of 3 subregionsCentral RangesLeast Concern
Tieyon (FIN03)FinkeNear Threatened
  [edge of range]
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 Euchiton]
Name derivation:
Euchiton From the Greek 'eu' meaning good and 'chiton' meaning tunic or covering; referring to the dense covered of hairs. Sphaericus from Greek meaning spherical in form; referring to the shape of the flower head.
Distribution:
Found across much of South Australia, growing in various habitats. Also found in all states.
Status:
Native. Common in South Australia. Common in the other states.
Plant description:
Erect annual or sometime biennial herb to 50 cm high with stems covered in white woolly hairs. Basal leaves obovate, with narrowed base and obtuse apex, soon withering, stem leaves oblanceolate to spathulate or narrow-elliptic, to 70 mm long and 14 mm wide, base narrowed, margins recurved and often undulate, upper surface green and glabrous to slightly cobwebby, lower surface white- or green- hairs. Flower heads in a dense spherical clusters to 1.5 mm diameter at the terminal of stalk with yellow, cream or brown flowers. Flowers throughout the year.
Fruit type:
Dense brown 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.