Seeds of South Australia
Kennedia prostrata (Leguminosae)
Running Postman
List of species for Kennedia
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Seed collecting:
November to January
Herbarium regions:
Flinders Ranges, Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula, Southern Lofty, Kangaroo Island, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Eyre Peninsula, Kangaroo Island, Northern and Yorke, South Australian Murray-Darling Basin, South East
IBRA regions
SUMMARY
Mount Gambier (SVP02)Southern Volcanic Plain
 Least Concern
Bridgewater (NCP01)Naracoorte Coastal Plain
 Least Concern
Glenelg Plain (NCP02) 
 Least Concern
Lucindale (NCP03) 
 Least Concern
Tintinara (NCP04) 
 Least Concern
Kangaroo Island (KAN01)Kanmantoo
 Least Concern
Fleurieu (KAN02) 
 Least Concern
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Least Concern
Broughton (FLB02) 
 Least Concern
Olary Spur (FLB03) 
 Rare   (IUCN: RA d(ii))
Southern Flinders (FLB04) 
 Least Concern
Southern Yorke (EYB01)Eyre Yorke Block
 Least Concern
St Vincent (EYB02) 
 Endangered   (IUCN: EN B2ab(iii))   (Definite Decline)
Eyre Hills (EYB03) 
 Least Concern
Talia (EYB04) 
 Least Concern
Eyre Mallee (EYB05) 
 Rare   (IUCN: RA d(ii))
Murray Mallee (MDD02)Murray Darling Depression
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Murray Lakes and Coorong (MDD03) 
 Least Concern
Lowan Mallee (MDD04) 
 Least Concern
Wimmera (MDD05) 
 Least Concern
Myall Plains (GAW01)Gawler
 Rare   (IUCN: RA d(ii))
IBRA regions
DISPLAY ALL
Mount Gambier (SVP02)Southern Volcanic PlainLeast Concern
4 of 4 subregionsNaracoorte Coastal PlainLeast Concern
2 of 2 subregionsKanmantooLeast Concern
4 of 6 subregionsFlinders Lofty BlockLeast Concern
, Rare
5 of 5 subregionsEyre Yorke BlockLeast Concern
, Rare
, Endangered
4 of 6 subregionsMurray Darling DepressionLeast Concern
, Rare
Myall Plains (GAW01)GawlerRare
  (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 Kennedia]
Name derivation:
Kennedia named after Lewis Kennedy (1775-1818), a nurseryman at Hammersmith, near London. Prostrata from Latin meaning flat on the ground or prostrate; referring to the species habit.
Distribution:
Found in the southern part of South Australia, growing mainly on coastal sand dunes, but also inland on rocky outcrops. Also found in Western Australia, New South Wales, Victoria and Tasmania.
Status:
Native. Common in South Australia. Common in the other states.
Plant description:
Prostrate or-rarely twining herb, with stems covered in hairs. Leaves with 3 leaflets, on stalk to 5 cm or more long, sparsely hairy. Flowers red or scarlet with 1 or 2 on a short stalk. Flowering between August and November.
Fruit type:
Brown cylindrical pod to 50 mm long and 8 mm wide, covered in hairs.
Seed type:
Black reniform seed to 2.5 mm long and 1.5 mm wide, with a large pale yellow aril.
Embryo type:
Bent.
Seed collecting:
Collect mature pods, those turning brown from purple-red and contain dark hard seeds inside.
Seed cleaning:
Place the pods in a tray and cover with paper to prevent seeds popping out and leave to dry for a week. Then rub the pods with your hands 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 two collections, the seed viability were high, at 95%.
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
3450 (130.38 g)
3450 (130.38 g)
80+15-Dec-2005DJD331
Southern Lofty
7-Aug-200695%-18°C
BGA230 (5.36 g)15-Nov-2005MKJ1429-Aug-2006banked-18°C
BGA4000 (100 g)50+2-Dec-2010Kanmantoo
Murray
1-Jan-201295%-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.
Germination table:
DateResultT0T50Pre-treatment | Germination medium | Incubator: Photoperiod / Thermoperiod
Mar-1594%7 d14 d seed coat nicked with scalpel;
1% agar;
Incubated under spring/autumn conditions
Mar-1586%7 d14 d seed coat nicked with scalpel;
1% agar;
Incubated under winter conditions
Mar-152%21 dNA
1% agar;
Incubated under winter conditions
Mar-150%NANA
1% agar;
Incubated under spring/autumn conditions
Result: Maximum percentage of germination observed.
T0: Number of days before first germinant observed.
T50: Number of days to achieve 50% germination.
Pre-treatment: The initial treatment that the seeds received prior to placement on germination media.
Germination medium: The substrate that seeds were placed on for the duration of the germination experiment.
Incubator conditions:
Photoperiod: The duration of light exposure that the seeds were subject to during a 24 hour period.
Thermoperiod: The constant or diurnal temperatures that seeds were subject to during a 24 hour period.
Winter conditions: 15°C 20 h (3am→11pm); 5°C 4 h (11pm→3am) / 10 h light (8am→6pm); 14 h dark (6pm→8am)
Spring/Autumn conditions: 22°C 12 h (8am→8pm); 10°C 12 h (8pm→8am) / 12 h light (8am→8pm); 12 h dark (8pm→8am)
Summer conditions: 30°C 14 h (6am→8pm); 15°C 10 h (8pm→6am) / 14 h light (6am→8pm); 10 h dark (8pm→6am)