Seeds of South Australia
Brachyscome goniocarpa (Compositae)
Angle-fruit Daisy
List of species for Brachyscome
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Seed collecting:
October to December
Herbarium regions:
Eastern, 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 Arid Lands, South Australian Murray-Darling Basin, South East
IBRA regions
SUMMARY
Bridgewater (NCP01)Naracoorte Coastal Plain
 Rare   (IUCN: RA d(i,ii))
Lucindale (NCP03) 
 Least Concern
Tintinara (NCP04) 
 Least Concern
Kangaroo Island (KAN01)Kanmantoo
 Near Threatened   [reasonably widespread; protected in several reserves]
Fleurieu (KAN02) 
 Rare   (IUCN: RA d(ii))   [edge of range]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Rare   (IUCN: RA d(i,ii))   [edge of range; likes high rainfall]
Broughton (FLB02) 
 Data Deficient
Olary Spur (FLB03) 
 Data Deficient
Southern Flinders (FLB04) 
 Data Deficient
Southern Yorke (EYB01)Eyre Yorke Block
 Least Concern
Eyre Hills (EYB03) 
 Rare   (IUCN: RA d(i,ii))   [undercollected]
Talia (EYB04) 
 Least Concern
Eyre Mallee (EYB05) 
 Least Concern   [undercollected]
Murray Mallee (MDD02)Murray Darling Depression
 Least Concern
Murray Lakes and Coorong (MDD03) 
 Rare   (IUCN: RA d(ii))   [no records]
Lowan Mallee (MDD04) 
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Braemer (MDD07) 
 Data Deficient
IBRA regions
DISPLAY ALL
3 of 4 subregionsNaracoorte Coastal PlainLeast Concern
, Rare
2 of 2 subregionsKanmantooNear Threatened
, Rare
4 of 6 subregionsFlinders Lofty BlockRare
, Data Deficient
4 of 5 subregionsEyre Yorke BlockLeast Concern
, Rare
4 of 6 subregionsMurray Darling DepressionLeast Concern
, Rare
, Data Deficient
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 Brachyscome]
Name derivation:
Brachyscome from the Greek 'brachys' meaning short and 'kome' meaning hair; referring to the short bristles or hairs of the pappus. Goniocarpa from the Greek 'gonia' meaning angle and 'carpos' meaning fruit; referring to the seed having many sides.
Distribution:
Found in the southern part in South Australia, from Eyre Peninsula to the South-east, growing in damp shallow depressions on sand dunes and under eucalypts. Also found in Western Australia, New South Wales and Victoria.
Status:
Native. Common in South Australia. Uncommon in Western Australia. Common in the other states.
Plant description:
Annual herb to 23 cm high with few, erect to decumbent, weak, hairy stems. Basal leaves spathulate and lobed to 4.5 cm long, soon withering. Other leaves spathulate to cuneate, distally lobed to 3 cm long and 6 mm wide, pubescent, glandular. Flowers small white daisy. Flowering between August and October.
Fruit type:
Brown-black daisy heads.
Seed type:
Black many angled seed to 2 mm long and 1 mm wide, with smooth bumpy surface.
Embryo type:
Spatulate fully developed.
Seed collecting:
Pick heads that are maturing, drying off, with brown seeds that dislodge easily.
Seed cleaning:
Place the seed-heads in a tray and leave to dry for a week. Then gently rub the heads 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 high, at 90%.
Seed germination:
This species has physiological dormancy that needs to be overcome for the seed to germinate .Gibberellic acid (250 mg/L added to water agar) may improve germination, particularly under diurnal summer conditions or constant temperatures ranging from 17.5 - 28.5 degrees celcius.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
31000 (11.98 g)
17000 (8.089 g)
501-Oct-2007RJB74324
South Eastern
19-Sep-200890%-18°C
PJA1561-Jan-2012-18°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
September 201277%7d21d None
1% water agar supplemented with 250 mg/L gibberellic acid
12 hours  /  23 °C C constant.
January 201263%7d42d 2 months after-ripening at 45 °C C/30% relative humidity
1% water agar supplemented with 250 mg/L gibberellic acid.
Incubated under spring/autumn conditions
July 201041%NANA None
1% w/v water agar supplemented with 250 mg/L gibberellic acid
Incubated under summer conditions
July 201022%NANA None
1% w/v water agar supplemented with 250 mg/L gibberellic acid
Incubated under winter conditions
July 201015%NANA None
1% w/v water agar supplemented with 250 mg/L gibberellic acid
Incubated under spring/autumn conditions
July 20105%28dNA None
1% w/v water agar
Incubated under winter conditions
July 20100%NANA None
1% w/v water agar
Incubated under spring/autumn conditions
July 20100%NANA None
1% w/v water agar
Incubated under summer 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)