Seeds of South Australia
Sida calyxhymenia (Malvaceae)
Tall Sida
List of species for Sida
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Seed collecting:
July to December
Herbarium regions:
North Western, Lake Eyre, Nullarbor, Gairdner-Torrens, Eyre Peninsula
NRM regions:
Alinytjara Wilurara, Eyre Peninsula, South Australian Arid Lands
IBRA regions
SUMMARY
Central Flinders (FLB06)Flinders Lofty Block
 Rare   (IUCN: RA d(ii))   [edge of range]
Eyre Mallee (EYB05)Eyre Yorke Block
 Vulnerable   (IUCN: VU B2ab(i,ii,iii); D2)   (Probable Decline)   [highly localised]
Myall Plains (GAW01)Gawler
 Rare   (IUCN: RA d(ii))   (Probable Decline)
Gawler Volcanics (GAW02) 
 Least Concern   (Probable Decline)
Gawler Lakes (GAW03) 
 Rare   (IUCN: RA d(ii))
Arcoona Plateau (GAW04) 
 Rare   (IUCN: RA d(ii))
Kingoonya (GAW05) 
 Least Concern
Roxby (GAW07) 
 Near Threatened
Commonwealth Hill (GAW08) 
 Least Concern
Maralinga (GVD03)Great Victoria Desert
 Least Concern
Kintore (GVD04) 
 Least Concern
Tallaringa (GVD05) 
 Least Concern
Yellabinna (GVD06) 
 Least Concern
Carlisle (NUL01)Nullarbor
 Least Concern
Nullarbor Plain (NUL02) 
 Rare   (IUCN: RA d(ii))
Breakaways (STP01)Stony Plains
 Near Threatened
Mann-Musgrave Block (CER01)Central Ranges
 Least Concern
Watarru (CER02) 
 Least Concern
Everard Block (CER03) 
 Least Concern
Tieyon (FIN03)Finke
 Near Threatened
IBRA regions
DISPLAY ALL
Central Flinders (FLB06)Flinders Lofty BlockRare
  (IUCN: RA d(ii))   [edge of range]
Eyre Mallee (EYB05)Eyre Yorke BlockVulnerable
  (IUCN: VU B2ab(i,ii,iii); D2)   (Probable Decline)   [highly localised]
7 of 8 subregionsGawlerLeast Concern
, Near Threatened
, Rare
4 of 4 subregionsGreat Victoria DesertLeast Concern
2 of 3 subregionsNullarborLeast Concern
, Rare
Breakaways (STP01)Stony PlainsNear Threatened
3 of 3 subregionsCentral RangesLeast Concern
Tieyon (FIN03)FinkeNear Threatened
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 changing its primary, pre-Linnaean application. Calyxhymenia from the Greek 'kalyx' meaning calyx and 'hymen' meaning membrane (which is named after Hymenis the Greek god of marriage); referring to its broad calyx (sepals).
Distribution:
Found in the central and north-western parts of South Australia, growing on rocky outcrops, creek beds and rocky hills. Also found in Western Australia and the Northern Territory.
Status:
Native. Common in South Australia. Uncommon in the Northern Territory. Common in Western Australia.
Plant description:
Erect perennial shrub to 2 m high, with fine hairy branches, greyish often tinged yellowish in appearance. Leaves linear-oblong or lanceolate to oblong, to 100 mm long and 15 mm wide, margin entire or with fine serration, hairy. Inflorescence solitary or in axillary or terminal clusters of 2-6  yellow flowers with broad membranous sepals below. Flowering between April and October.
Fruit type:
Brown conical 5 segmented fruit to 5 mm long, with a wrinkled surface and surfaced by the enlarge sepals.
Seed type:
Dark brown wedge-shaped seed to 2 mm long and 1 mm wide.
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 viability:
From one collection, the seed viability was low, at 30%.
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).
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
3400 (13.72 g)
3400 (13.72 g)
9-Nov-2005MKJ118
Gairdner-Torrens
7-Aug-200630%-18°C
Location: BGA — the seeds are stored at the Adelaide Botanic Gardens, MSB — the seeds are stored at the Millennium Seed Bank, Kew, England.
Number of plants: This is the number of plants from which the seeds were collected.
Collection location: The Herbarium of South Australia's region name.
% Viability: Percentage of filled healthy seeds determined by a cut test or x-ray.