Seeds of South Australia
Centipeda crateriformis ssp. compacta (Compositae)
Compact Sneezeweed
List of species for Centipeda
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Seed collecting:
January, September to November
Herbarium regions:
Lake Eyre, 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
SUMMARY
Mount Gambier (SVP02)Southern Volcanic Plain
 Data Deficient   [due to taxonomic change, lots of records not databased]
Glenelg Plain (NCP02)Naracoorte Coastal Plain
 Data Deficient   [due to taxonomic change, lots of records not databased]
Lucindale (NCP03) 
 Least Concern
Kangaroo Island (KAN01)Kanmantoo
 Least Concern   [fairly widespread; floodplain sp, weedy; likes modified habitat]
Fleurieu (KAN02) 
 Rare   (IUCN: RA d(ii))   [under-represented; floodplain sp, around reservoirs; weedy; likes modified habitat]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Rare   (IUCN: RA d(ii))   [under-represented; floodplain sp, around reservoirs; weedy; likes modified habitat]
Eyre Hills (EYB03)Eyre Yorke Block
 Rare   (IUCN: RA d(i,ii))   [many Survey records of this genus will be non-current]
Talia (EYB04) 
 Rare   (IUCN: RA d(i,ii))   [many Survey records of this genus will be non-current]
South Olary Plain (MDD01)Murray Darling Depression
 Rare   (IUCN: RA d(ii))   [comes & goes; needs water; no survey records]
Murray Mallee (MDD02) 
 Rare   (IUCN: RA d(ii))   [comes & goes; needs water; no survey records]
Lowan Mallee (MDD04) 
 Rare   (IUCN: RA d(ii))   [comes & goes; needs water; no survey records]
Wimmera (MDD05) 
 Data Deficient   [due to taxonomic change, lots of records not databased]
Murray Scroll Belt (RIV06)Riverina
 Rare   (IUCN: RA d(ii))   [comes & goes; needs water; no survey records]
Myall Plains (GAW01)Gawler
 Rare   (IUCN: RA d(i,ii))   [many Survey records of this genus will be non-current]
Gawler Lakes (GAW03) 
 Rare   (IUCN: RA d(i,ii))
IBRA regions
DISPLAY ALL
Mount Gambier (SVP02)Southern Volcanic PlainData Deficient
  [due to taxonomic change, lots of records not databased]
2 of 4 subregionsNaracoorte Coastal PlainLeast Concern
, Data Deficient
2 of 2 subregionsKanmantooLeast Concern
, Rare
Mount Lofty Ranges (FLB01)Flinders Lofty BlockRare
  (IUCN: RA d(ii))   [under-represented; floodplain sp, around reservoirs; weedy; likes modified habitat]
2 of 5 subregionsEyre Yorke BlockRare
4 of 6 subregionsMurray Darling DepressionRare
, Data Deficient
Murray Scroll Belt (RIV06)RiverinaRare
  (IUCN: RA d(ii))   [comes & goes; needs water; no survey records]
2 of 8 subregionsGawlerRare
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 Centipeda]
Name derivation:
Centipeda from Latin for centipede, from 'centi' meaning hundred and 'ped' meaning foot; referring to the creeping stems. Crateriformis from Latin meaning bowl-shaped;  referring to the bowl-shaped capitula (compact flower head) when fully open. Compacta meaning compact. 
Distribution:
Found mainly in the southern part of South Australia, growing on the shores of drying watercourses and in seasonally inundated swamps and depressions. Also found in Western Australia, New South Wales and Victoria.
Status:
Native. Common in South Australia. Rare in Victoria. Common in the other states.
Plant description:
Tufted or loosely mat-forming perennial, sometimes shortly rhizomatous or producing adventitious roots from lower nodes, to 20 cm diameter and to 10 cm high, branches prostrate to suberect, glabrous except for cottony hairs on young growth. Leaves more or less oblong to spathulate, to 14 mm long and 3.5 mm wide with up to 7 toothed toward apex or entire, surfaces resin-dotted. Flower heads green with no petal, cup-shaped to almost globular, single at the bases of the leaves or at the ends of the stems. Flowers most of the year. Centipeda crateriformis ssp. compacta differ from the other subspecies by being a perennial (annual for C. crateriformis ssp. crateriformis) and having narrower leaves.
Fruit type:
Dense brown daisy head.
Seed type:
Pale brown ovoid seed to 1.5 mm long and 0.5 mm wide, with scattered hairs on the narrower part.
Embryo type:
Spatulate.
Seed collecting:
Collect heads that are drying off and turning brown.
Seed cleaning:
Place the heads in a tray for a week to dry. Then rub the heads gently with your hands or a rubber bung to dislodge the seeds. Use a sieve to separate the unwanted material. Be 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 one collection, the seed viability was high, at 95%.
Seed germination:
Seeds are non-dormant, viable seed should germinate readily.