Plants of
South Australia
Brachyscome graminea
Compositae
Grass Daisy
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Regional Species Conservation Assessments per IBRA subregion.
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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 tufts of short bristles or hairs of the pappus. Graminea from the Latin 'gramen' meaning grass; alluding to the grass-like appearance of the species.

Distribution and status

Few records from the southern Mount Lofty Ranges and the lower South-east in South Australia, growing in moist areas from swamps to saline marshes and along watercourses. Also found in New South Wales, Victoria and Tasmania. 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

Stoloniferous perennial herb to 70 cm high with weak, ascending to erect, often branched, sparsely hairy stems. Leaves often crowded near the base of the stem, sessile, erect, linear to oblanceolate, narrow at the base, entire, acute, to 14 cm long and 7 mm wide, grass-like glabrous, with a prominent mid-vein, Flowers white daisy on long stalk appearing mostly through the warmer months but may flower all year if conditions are suitable. Fruits are brown daisy-heads. Seeds are yellow to pale-brown, flat ovoid seed to 2.5 mm long and 2 mm wide. Seed embryo type is spatulate fully developed.

Seed collection and propagation

Collect seeds between January and March. 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%. This species may have physiological dormancy that needs to be overcome for the seed to germinate.Summer or spring/autumn conditions promote high germination rates. The species has a requirement for fluctuating day/night temperatures, rather than constant temperatures. Germination can be improved with moist stratification (5 degrees celcius for up to six months) or dry after-ripening (30 - 45 degrees celsius for six months).

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
7,200 (2.43 g)
1,000 (0.52 g)
100+31-Jan-2008PJA169
South Eastern
1-Jun-201065%-18°C
BGA4,000 (2.06 g)100+27-Mar-2008PJA168
South Eastern
1-Jun-201090%+5°C, -18°C
BGA4,100 (2 g)100+11-Feb-2009DJD1495
South Eastern
1-Jun-201080%-18°C
BGA10,600 (4.62 g)17-Mar-2009DJD1495
South Eastern
1-Jan-201280%+5°C, -18°C
BGA9,700 (1.79 g)100+23-Feb-2016DJD3334
Southern Lofty
2-May-201775%+5°C, -18°C, -80°C
200+11-Feb-2009DJD1495
South Eastern
1-Nov-201780%-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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