Seeds of South Australia
Sida petrophila (Malvaceae)
Rock Sida
List of species for Sida
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Seed collecting:
January to December
Herbarium regions:
Lake Eyre, Gairdner-Torrens, Flinders Ranges, Eastern, Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula, Southern Lofty
NRM regions:
Eyre Peninsula, Northern and Yorke, South Australian Arid Lands, South Australian Murray-Darling Basin
IBRA regions
SUMMARY
Fleurieu (KAN02)Kanmantoo
 Rare   (IUCN: RA d(ii))   [Saunders Gorge. Northern population probably only really stable.]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Rare   (IUCN: RA d(ii))   (Probable Decline)   [Hallet Cove, Onkaparinga Gorge, Rapid Bay; restricted habitat; threatened by loss of habitat, urbanisation]
Broughton (FLB02) 
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)
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
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Definite Decline)
Eyre Hills (EYB03) 
 Rare   (IUCN: RA d(ii))   (Probable Decline)
Eyre Mallee (EYB05) 
 Rare   (IUCN: RA d(ii))
Murray Mallee (MDD02)Murray Darling Depression
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Braemer (MDD07) 
 Least Concern
Murray Scroll Belt (RIV06)Riverina
 Near Threatened   [undercollected; limited habitat]
Myall Plains (GAW01)Gawler
 Least Concern
Gawler Volcanics (GAW02) 
 Least Concern
Gawler Lakes (GAW03) 
 Rare   (IUCN: RA d(ii))   (Probable Decline)
Arcoona Plateau (GAW04) 
 Least Concern
Kingoonya (GAW05) 
 Rare   (IUCN: RA d(ii))
Roxby (GAW07) 
 Least Concern
Commonwealth Hill (GAW08) 
 Rare   (IUCN: RA d(ii))
Maralinga (GVD03)Great Victoria Desert
 Rare   (IUCN: RA d(ii))
Tallaringa (GVD05) 
 Rare   (IUCN: RA d(i,ii))
Yellabinna (GVD06) 
 Least Concern
Barrier Range (BHC01)Broken Hill Complex
 Rare   (IUCN: RA d(i,ii))
Barrier Range Outwash (BHC04) 
 Rare   (IUCN: RA d(i,ii))
Bimbowrie (BHC05) 
 Least Concern
Curnamona (BHC06) 
 Rare   (IUCN: RA d(i,ii))
Warriner (SSD04)Simpson Strzelecki Dunefields
 Near Threatened
Strzelecki Desert (SSD05) 
 Rare   (IUCN: RA d(i,ii))   [limited habitat]
Breakaways (STP01)Stony Plains
 Least Concern
Oodnadatta (STP02) 
 Least Concern
Murnpeowie (STP03) 
 Least Concern
Peake-Dennison Inlier (STP04) 
 Least Concern
Witjira (STP06) 
 Rare   (IUCN: RA d(ii))
Baltana (STP07) 
 Least Concern
Sturt Stony Desert (CHC02)Channel Country
 Near Threatened
Everard Block (CER03)Central Ranges
 Rare   (IUCN: RA d(i,ii))
Tieyon (FIN03)Finke
 Rare   (IUCN: RA d(ii))
IBRA regions
DISPLAY ALL
Fleurieu (KAN02)KanmantooRare
  (IUCN: RA d(ii))   [Saunders Gorge. Northern population probably only really stable.]
6 of 6 subregionsFlinders Lofty BlockLeast Concern
, Rare
3 of 5 subregionsEyre Yorke BlockRare
, Vulnerable
2 of 6 subregionsMurray Darling DepressionLeast Concern
, Rare
Murray Scroll Belt (RIV06)RiverinaNear Threatened
  [undercollected; limited habitat]
7 of 8 subregionsGawlerLeast Concern
, Rare
3 of 4 subregionsGreat Victoria DesertLeast Concern
, Rare
4 of 4 subregionsBroken Hill ComplexLeast Concern
, Rare
2 of 4 subregionsSimpson Strzelecki DunefieldsNear Threatened
, Rare
6 of 7 subregionsStony PlainsLeast Concern
, Rare
Sturt Stony Desert (CHC02)Channel CountryNear Threatened
Everard Block (CER03)Central RangesRare
  (IUCN: RA d(i,ii))
Tieyon (FIN03)FinkeRare
  (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 Sida]
Name derivation:
Sida a Greek name used by Theophrastus for a water-lily, probably in reference to Nymphaea alba or for a pomegranate tree. Linnaeus  transferred the name to Malvaceae suppressing its primary, pre-Linnaean application. Petrophila from the Greek 'petros' meaning rock and 'philos' meaning love; referring to its rocky habitats.
Distribution:
Found on the eastern half of South Australia, growing in hilly rocky places on shallow sandy and stony calcareous soils. Also found in Western Australia, Queensland and New South Wales.
Status:
Native. Common in South Australia. Uncommon in Western Australia. Common in the other states.
Plant description:
Erect perennial shrub to 1 m high, usually with one main stems and many smaller branches, covered in hairs. Leaves alternate, oblong to lanceolate, to 40 mm long and 10 mm wide, felty, grey-green with a yellow tinged, dense yellowish below, margin toothed. Inflorescence solitary in leaf axils with yellow flowers on slender stalk. Flowers throughout the year.
Fruit type:
Hairy fruit to 7 mm long, with 6-7 segments.
Embryo type:
Folded.
Seed collecting:
Collect mature fruits, those that are turning pale straw colour and contain dark hard seeds.
Seed cleaning:
Place the capsules in a tray and leave to dry for two weeks. Then rub the capsules gently with a rubber bung or by hand 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 germination:
This species has physical dormancy that needs to be overcome for the seed to germinate (e.g. nicking or softening the seed coat).