Seeds of South Australia
Cullen pallidum (Leguminosae)
Woolly Scurf-pea
List of species for Cullen
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Seed collecting:
September to April
Herbarium regions:
North Western, Lake Eyre, Gairdner-Torrens, Flinders Ranges, Murray
NRM regions:
Alinytjara Wilurara, South Australian Arid Lands
IBRA regions
SUMMARY
South Olary Plain (MDD01)Murray Darling Depression
 Rare   (IUCN: RA d(ii))   [difficult to ID; likes red sand]
Murray Mallee (MDD02) 
 Vulnerable   (IUCN: VU B2ab(i,ii,iii); D2)   (Probable Decline)   [on sands near river]
Murray Scroll Belt (RIV06)Riverina
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)   [limited habitat]
Arcoona Plateau (GAW04)Gawler
 Rare   (IUCN: RA d(i,ii))   [limit of range]
Torrens (GAW06) 
 Least Concern
Roxby (GAW07) 
 Near Threatened
Maralinga (GVD03)Great Victoria Desert
 Rare   (IUCN: RA d(i,ii))   [limit of range]
Simpson Desert (SSD02)Simpson Strzelecki Dunefields
 Least Concern
Dieri (SSD03) 
 Least Concern
Warriner (SSD04) 
 Near Threatened
Strzelecki Desert (SSD05) 
 Least Concern
Breakaways (STP01)Stony Plains
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Oodnadatta (STP02) 
 Near Threatened
Murnpeowie (STP03) 
 Least Concern
Macumba (STP05) 
 Near Threatened
Witjira (STP06) 
 Near Threatened
Sturt Stony Desert (CHC02)Channel Country
 Least Concern
Diamantina-Eyre (CHC04) 
 Least Concern
Coongie (CHC06) 
 Least Concern
Lake Pure (CHC07) 
 Least Concern
Pedirka (FIN04)Finke
 Near Threatened
IBRA regions
DISPLAY ALL
2 of 6 subregionsMurray Darling DepressionRare
, Vulnerable
Murray Scroll Belt (RIV06)RiverinaVulnerable
  (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)   [limited habitat]
3 of 8 subregionsGawlerLeast Concern
, Near Threatened
, Rare
Maralinga (GVD03)Great Victoria DesertRare
  (IUCN: RA d(i,ii))   [limit of range]
4 of 4 subregionsSimpson Strzelecki DunefieldsLeast Concern
, Near Threatened
5 of 7 subregionsStony PlainsLeast Concern
, Near Threatened
, Rare
4 of 4 subregionsChannel CountryLeast Concern
Pedirka (FIN04)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 Cullen]
Name derivation:
Cullen named after William Cullen (1710-1790), a Scottish physician and chemist who lectured at the University of Glasgow on among other things botany. Pallidum from the Latin 'pallidus' meaning pale; referring to the pale purple flowers.
Distribution:
Found in the north-east part of South Australia and along the Murray, growing on sands, often on dunes. Also found in all mainland states.
Status:
Native. Common in South Australia. Rare in Victoria. Common in the other states.
Plant description:
Erect or ascending, finally decumbent, short-lived perennial herb, sometimes flowering first year and appearing annual, grey-pubescent or villous, stems striate, to 90 cm long, glands not visible. Leaves to 10 cm long, pinnately 3-foliate, leaflets  ovate, to 5 cm long and 35 mm wide, undulate, margins toothed, glands few or obscure. Flower-spike to 8 cm long, with purplish or yellow pea-flowers. Flowers mainly in spring and summer.
Fruit type:
Black ovoid pod to 4 mm long, hairy with one seed inside.
Seed type:
Brown bean-shaped seed to 4 mm long and 2 mm wide, with dense hairs at one end and scattered hairs towards the other end.
Embryo type:
Bent.
Seed collecting:
Collect maturing pods, those that are fat, turning black and contain a brown seed inside, by running your hands along the fruit-spikes.
Seed cleaning:
Place the pods in a tray and leave to dry for 1 to 2 weeks or until the pods begin to split. Then rub the dried pods to dislodge the seeds. Use a sieve to separate any 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 were high, ranging from 95% 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
2400 (16.43 g)
2400 (16.43 g)
100+1-Oct-2007MJT137
Lake Eyre
19-Sep-200895%-18°C
BGA800 (5.22 g)~1027-Sep-2007MJT96
Lake Eyre
19-Sep-2008100%-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.