Plants of
South Australia
Brachyscome dentata
Compositae
Toothed Daisy
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Regional Species Conservation Assessments per IBRA subregion.
Least concern
Near threatened
Rare
Vulnerable
Endangered
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Extinct
Data deficient
Adelaide
Arkaroola
Ceduna
Coober Pedy
Hawker
Innamincka
Marla
Marree
Mount Gambier
Oodnadatta
Renmark
Wudinna
Keith
Yunta
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Botanical art

Kath Alcock paintings: 4.

Etymology

Brachyscome from the Greek 'brachys' meaning short and 'kome' meaning hair; referring to the tuft of short bristles or hairs of the pappus. Dentata from the Latin 'dens' meaning tooth, referring to the tooth-like margin of the seed.

Distribution and status

Found on the eastern side of South Australia, from Strzeleki to Murray Bridge, growing in heavy clay flood plains, sand plains and grassland. Also found in Queensland, New South Wales and Victoria. Native. Common in South Australia. Common in the other States.
Herbarium regions: Lake Eyre, Flinders Ranges, Eastern, Northern Lofty, Murray, South Eastern
NRM regions: Adelaide and Mount Lofty Ranges, South Australian Arid Lands, South Australian Murray-Darling Basin, South East
AVH map: SA distribution map (external link)

Plant description

Perennial herb to 50 cm high with a woody rootstock. Leaves are extremely variable in shape, usually linear to wedge-shaped with 3 teeth at he tip but can have up to 13 teeth around the margin. Large white daisy appearing between June and November. Fruits are brown daisy-heads. Seeds are flat yellow seed to 3 mm long and 2 mm wide, with deeply tooth winged margin, tubercule face and short pappus at one end. Seed embryo type is spatulate fully developed.

Seed collection and propagation

Collect seeds between February and October. 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 high, ranging from 85% to 100%. This species may have physiological dormancy that needs to be overcome for the seed to germinate.Winter produces high germination. Potassium nitrate, smoked water, and gibberellic acid can improve germination..

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
22,500 (6.4 g)
22,500 (6.4 g)
100+22-Oct-2008MJT161
Eastern
1-Jun-201090%-18°C
BGA29,700 (7.96 g)21-Oct-2008DJD1081
Eastern
1-Jan-2012100%-18°C
BGA13,000 (4.95 g)50+15-Jun-2010KHB424
Flinders Ranges
1-Jan-201285%-18°C
25+21-Oct-2008DJD1081
Eastern
1-Nov-2017100%-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:
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