Seeds of South Australia
Lawrencia glomerata (Malvaceae)
Clustered Lawrencia
List of species for Lawrencia
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Seed collecting:
September to November
Herbarium regions:
North Western, Lake Eyre, Nullarbor, Gairdner-Torrens, Flinders Ranges, Eastern, Eyre Peninsula, 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
Bridgewater (NCP01)Naracoorte Coastal Plain
 Rare   (IUCN: RA d(ii))   [unusual]
Tintinara (NCP04) 
 Least Concern
Kangaroo Island (KAN01)Kanmantoo
 Vulnerable   (IUCN: VU D2)   [checked P Lang: could be EN D]
Fleurieu (KAN02) 
 Vulnerable   (IUCN: VU D2)   [appears after fire; in Monarto area]
Olary Spur (FLB03)Flinders Lofty Block
 Rare   (IUCN: RA d(i,ii))
Southern Flinders (FLB04) 
 Vulnerable   (IUCN: VU B2ab(i,ii,iii)c(iii))   (Probable Decline)
Northern Flinders (FLB05) 
 Least Concern   [taxon now has 3 ssp]
Central Flinders (FLB06) 
 Near Threatened   [taxon now has 3 ssp]
Southern Yorke (EYB01)Eyre Yorke Block
 Vulnerable   (IUCN: VU B2ab(i,ii,iii)c(iii))   (Probable Decline)
St Vincent (EYB02) 
 Vulnerable   (IUCN: VU B2ab(i,ii,iii)c(iii))   (Probable Decline)
Eyre Hills (EYB03) 
 Least Concern
Talia (EYB04) 
 Near Threatened   (Probable Decline)
Eyre Mallee (EYB05) 
 Least Concern
South Olary Plain (MDD01)Murray Darling Depression
 Least Concern   [undercollected]
Murray Mallee (MDD02) 
 Near Threatened
Murray Lakes and Coorong (MDD03) 
 Rare   (IUCN: RA d(ii))
Braemer (MDD07) 
 Rare   (IUCN: RA d(i,ii))
Murray Scroll Belt (RIV06)Riverina
 Rare   (IUCN: RA d(i,ii))
Myall Plains (GAW01)Gawler
 Near Threatened
Gawler Volcanics (GAW02) 
 Least Concern
Gawler Lakes (GAW03) 
 Least Concern
Arcoona Plateau (GAW04) 
 Least Concern
Kingoonya (GAW05) 
 Least Concern
Torrens (GAW06) 
 Least Concern   [taxon now has 3 ssp]
Roxby (GAW07) 
 Least Concern   [taxon now has 3 ssp]
Commonwealth Hill (GAW08) 
 Least Concern   [taxon now has 3 ssp]
Maralinga (GVD03)Great Victoria Desert
 Least Concern
Kintore (GVD04) 
 Near Threatened   [taxon now has 3 ssp]
Tallaringa (GVD05) 
 Least Concern   [taxon now has 3 ssp]
Yellabinna (GVD06) 
 Least Concern
Nullarbor Plain (NUL02)Nullarbor
 Least Concern
Yalata (NUL03) 
 Least Concern
Barrier Range (BHC01)Broken Hill Complex
 Rare   (IUCN: RA d(i,ii))
Barrier Range Outwash (BHC04) 
 Rare   (IUCN: RA d(i,ii))
Curnamona (BHC06) 
 Rare   (IUCN: RA d(i,ii))
Simpson Desert (SSD02)Simpson Strzelecki Dunefields
 Near Threatened   [taxon now has 3 ssp]
Dieri (SSD03) 
 Least Concern   [taxon now has 3 ssp]
Warriner (SSD04) 
 Near Threatened   [taxon now has 3 ssp]
Strzelecki Desert (SSD05) 
 Least Concern   [taxon now has 3 ssp]
Breakaways (STP01)Stony Plains
 Least Concern   [taxon now has 3 ssp]
Oodnadatta (STP02) 
 Least Concern   [taxon now has 3 ssp]
Murnpeowie (STP03) 
 Least Concern   [taxon now has 3 ssp]
Macumba (STP05) 
 Near Threatened   [taxon now has 3 ssp]
Witjira (STP06) 
 Least Concern   [taxon now has 3 ssp]
Baltana (STP07) 
 Least Concern   [taxon now has 3 ssp]
Coongie (CHC06)Channel Country
 Least Concern   [taxon now has 3 ssp]
Mann-Musgrave Block (CER01)Central Ranges
 Near Threatened   [taxon now has 3 ssp]
Tieyon (FIN03)Finke
 Near Threatened   [taxon now has 3 ssp]
IBRA regions
DISPLAY ALL
2 of 4 subregionsNaracoorte Coastal PlainLeast Concern
, Rare
2 of 2 subregionsKanmantooVulnerable
4 of 6 subregionsFlinders Lofty BlockLeast Concern
, Near Threatened
, Rare
, Vulnerable
5 of 5 subregionsEyre Yorke BlockLeast Concern
, Near Threatened
, Vulnerable
4 of 6 subregionsMurray Darling DepressionLeast Concern
, Near Threatened
, Rare
Murray Scroll Belt (RIV06)RiverinaRare
  (IUCN: RA d(i,ii))
8 of 8 subregionsGawlerLeast Concern
, Near Threatened
4 of 4 subregionsGreat Victoria DesertLeast Concern
, Near Threatened
2 of 3 subregionsNullarborLeast Concern
3 of 4 subregionsBroken Hill ComplexRare
4 of 4 subregionsSimpson Strzelecki DunefieldsLeast Concern
, Near Threatened
6 of 7 subregionsStony PlainsLeast Concern
, Near Threatened
Coongie (CHC06)Channel CountryLeast Concern
  [taxon now has 3 ssp]
Mann-Musgrave Block (CER01)Central RangesNear Threatened
  [taxon now has 3 ssp]
Tieyon (FIN03)FinkeNear Threatened
  [taxon now has 3 ssp]
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 Lawrencia]
Name derivation:
Lawrencia named after Robert Williams Lawrence (1807-33), an English-born botanist and plant collector in Tasmania. Glomerata from the Latin 'glomeratus' meaning heap or having been made into a ball; referring to the dense flower clusters.
Distribution:
Found across all of South Australia, growing in saline or subsaline flats, depressions and around salt lakes, usually associated with mallee or samphire communities. Also found in all mainland states.
Status:
Native. Common in South Australia. Common in the other states.
Plant description:
Short-lived perennial sub-shrub to 50 cm high with several soft-woody procumbent to erect branches from the base. Lower leaves obovate to cuneate, to 40 mm long and 18 mm wide, on a long stalk, margins crenate to serrate, surfaces densely hairy. Upper leaves stalkless, smaller and relatively narrower than lower leaves, margins entire or commonly 3-toothed at apex. Inflorescence bisexual, solitary or few in axils of floral leaves with greenish, white or yellow flowers. Flowering between July and August.
Fruit type:
Glabrous fruit consisting of a number of seed segments with a pointed apex and the inner walls finely reticulate.
Seed type:
Brown wedge-shaped seed to 2 mm long and 2 mm wide.
Embryo type:
Folded.
Seed collecting:
Collect mature fruits, those that are turning a brown colour and the segments contain dark hard seeds.
Seed cleaning:
Place the fruits in a tray and leave to dry for one to two weeks. Then rub the fruits gently by hand to separate the  seed segments. 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 two collections, the seed viability was average to high, ranging from 65% to 100%.
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
10771 (64.84 g)
14555 (67.9 g)
~3523-Oct-2004MOL 4584
Gairdner-Torrens
28-Mar-200665%-18°C
BGA 
MSB
5000 (4.2 g)
5000 (4.2 g)
40-507-Nov-2005MKJ96
Gairdner-Torrens
7-Aug-2006100%-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.