Plants of
South Australia
Brachyscome paludicola
Compositae
Swamp Daisy
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Regional Species Conservation Assessments per IBRA subregion.
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Botanical art

Kath Alcock paintings: 3.

Etymology

Brachyscome from the Greek 'brachys' meaning short and 'kome' meaning hair, referring to the tuft of short bristles or hairs of the pappus. Paludicola from the Latin 'paludosus' meaning marshy and 'cola' meaning dwelling in, referring to its usual habitat in swampy sites.

Distribution and status

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. Native. Rare in South Australia. Common in the other States.
Herbarium regions: Murray, Southern Lofty, South Eastern
NRM regions: Adelaide and Mount Lofty Ranges, South Australian Murray-Darling Basin, South East
AVH map: SA distribution map (external link)

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. Fruits are brown daisy-heads. Seeds are brown, semi-flat ovoid seed to 2mm long with a smooth, broad margin, surface covered with tubercule and pappus reduced to a microscopic rim. Seed embryo type is spatulate fully developed.

Seed collection and propagation

Collect seeds between November and June. Pick heads that are maturing, drying off, with brown seeds that dislodge easily. 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. From three collections, the seed viability was average to high, ranging from 65% to 90%.

Seeds stored:
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LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
2,300 (0.23 g)
6,000 (0.6 g)
27-Apr-2006TST5
Murray
14-Sep-200670%+5°C, -18°C
BGA3,500 (0.47 g)1-Jun-2006TST5
Murray
1-Aug-200765%+5°C, -18°C
BGA2,400 (0.34 g)5017-May-2006PJA127
Murray
1-Aug-200790%+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.