Seeds of South Australia
Brachyscome paludicola (Compositae)
Swamp Daisy
List of species for Brachyscome
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Seed collecting:
November to June
Herbarium regions:
Murray, Southern Lofty, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, South Australian Murray-Darling Basin, South East
IBRA regions
Glenelg Plain (NCP02)Naracoorte Coastal Plain
 Vulnerable   (IUCN: VU D2)   [no records ]
St Vincent (EYB02)Eyre Yorke Block
 Data Deficient   [Very few old records. Data deficient. Type of habitat restrictive.]
Murray Mallee (MDD02)Murray Darling Depression
 Rare   (IUCN: RA a)   (Probable Decline)   [dependent on river health; does not tolerate salt]
Murray Lakes and Coorong (MDD03) 
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)
Wimmera (MDD05) 
 Vulnerable   (IUCN: VU D2)   (Probable Decline)
Murray Scroll Belt (RIV06)Riverina
 Rare   (IUCN: RA a)   (Probable Decline)   [dependent on river health; does not tolerate salt]
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. Paludicola from the Latin 'paludosus' meaning marshy and 'cola' meaning dwelling; referring to its usual habitat in swampy sites.
Distribution:
Found along the Murray River and in the South-east of South Australia, growing on inundated clay soils and common in seasonally wet, red gum dominated flats. Also found in New South Wales and Victoria.
Status:
Native. Rare in South Australia. Common in the other states.
Plant description:
Perennial herb to 60 cm high, with an underground rhizome. Stems sparsely branched, erect, rather weak, glabrous. Leaves radical and cauline, sessile, narrowly lanceolate to linear, entire, narrowed at the base, acute, to 9 cm long and 2.5 mm wide, glabrous, with a prominent mid-vein. Large solitary white daisy flower on a long stalk. Flowering between September and January.
Fruit type:
Brown daisy heads.
Seed type:
Brown, semi-flat ovoid seed to 2mm long with a smooth, broad margin, surface covered with tubercule and pappus reduced to a microscopic rim.
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 three collections, the seed viability were average to high, ranging from 65% to 90%.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
2300 (0.23 g)
6000 (0.6 g)
27-Apr-2006TST005
Murray
14-Sep-200670%+5°C, -18°C
BGA2400 (0.34 g)5017-May-2006PJA127
Murray
1-Aug-200790%+5°C, -18°C
BGA3500 (0.4747 g)1-Jun-2006TST005
Murray
1-Aug-200765%+5°C, -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.