Seeds of South Australia
Rhodanthe polygalifolia (Compositae)
Brilliant Sunray
List of species for Rhodanthe
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Seed collecting:
October to December
Herbarium regions:
North Western, Lake Eyre, Gairdner-Torrens, Flinders Ranges, Eastern, Eyre Peninsula, Northern Lofty, Murray
NRM regions:
Alinytjara Wilurara, Eyre Peninsula, Northern and Yorke, South Australian Arid Lands, South Australian Murray-Darling Basin
IBRA regions
SUMMARY
Fleurieu (KAN02)Kanmantoo
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Broughton (FLB02)Flinders Lofty Block
 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) 
 Least Concern
Talia (EYB04) 
 Least Concern
Eyre Mallee (EYB05) 
 Least Concern
South Olary Plain (MDD01)Murray Darling Depression
 Least Concern   [needs heavy rain]
Murray Mallee (MDD02) 
 Near Threatened   (Probable Decline)   [less suitable habitat]
Braemer (MDD07) 
 Least Concern
Murray Scroll Belt (RIV06)Riverina
 Rare   (IUCN: RA d(i,ii))   [limited habitat]
Myall Plains (GAW01)Gawler
 Least Concern
Gawler Volcanics (GAW02) 
 Least Concern
Gawler Lakes (GAW03) 
 Least Concern
Arcoona Plateau (GAW04) 
 Least Concern
Torrens (GAW06) 
 Near Threatened   [edge of range]
Yellabinna (GVD06)Great Victoria Desert
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Barrier Range (BHC01)Broken Hill Complex
 Least Concern
Barrier Range Outwash (BHC04) 
 Least Concern
Bimbowrie (BHC05) 
 Least Concern
Curnamona (BHC06) 
 Least Concern
Breakaways (STP01)Stony Plains
 Rare   (IUCN: RA d(i,ii))
Oodnadatta (STP02) 
 Rare   (IUCN: RA d(i,ii))
Murnpeowie (STP03) 
 Near Threatened   [edge of range]
Peake-Dennison Inlier (STP04) 
 Rare   (IUCN: RA d(i,ii))
Baltana (STP07) 
 Rare   (IUCN: RA d(i,ii))
IBRA regions
DISPLAY ALL
Fleurieu (KAN02)KanmantooRare
  (IUCN: RA d(i,ii))   [edge of range]
5 of 6 subregionsFlinders Lofty BlockLeast Concern
4 of 5 subregionsEyre Yorke BlockLeast Concern
3 of 6 subregionsMurray Darling DepressionLeast Concern
, Near Threatened
Murray Scroll Belt (RIV06)RiverinaRare
  (IUCN: RA d(i,ii))   [limited habitat]
5 of 8 subregionsGawlerLeast Concern
, Near Threatened
Yellabinna (GVD06)Great Victoria DesertRare
  (IUCN: RA d(i,ii))   [edge of range]
4 of 4 subregionsBroken Hill ComplexLeast Concern
5 of 7 subregionsStony PlainsNear Threatened
, Rare
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 Rhodanthe]
Name derivation:
Rhodanthe from the Greek 'rhodon' meaning a rose and 'anthos' meaning a flower; referring to the rose-like flowers of Rhodanthe manglesii, the type for the genus. Polygalifolia means with leaves resembling those of the genus Polygala.
Distribution:
Found in the central and eastern parts of South Australia, growing in a variety of habitats including mulga and bluebush communities on sandy to loamy soils. Also found in New South Wales and Victoria.
Status:
Native. Common in South Australia. Rare in Victoria. Common in New South Wales.
Plant description:
Erect to ascending annual herb to 30 cm high, stem brown, glabrous and branching at the base. Leaves absent below flower heads, narrow-oblong to 30 mm long and 3 mm wide, apex acute, upper surface with minute globose glands. Flowers solitary, terminal with yellow heads. Flowering between August and October.
Fruit type:
Golden globular daisy head.
Seed type:
Brown ovoid seed to 3 mm long and 2 mm wide, covered in white hairs and long pappus.
Embryo type:
Spatulate fully developed.
Seed collecting:
Collect heads that are matured, those that are drying off, fat, turning a straw colour seeds and seeds come off easily if you pull it out with your fingers.
Seed cleaning:
Place the heads in a tray and leave to dry for a week. Then rub the heads gently by hand or with a rubber bung to dislodge the seeds. Use a sieve to separate the unwanted material. 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%.