Regional Species Conservation Assessments per IBRA subregion.
Least concern
Near threatened
Rare
Vulnerable
Endangered
Critically endangered
Extinct
Data deficient
Adelaide
Arkaroola
Ceduna
Coober Pedy
Hawker
Innamincka
Marla
Marree
Mount Gambier
Oodnadatta
Renmark
Wudinna
Keith
Yunta
Display IBRA region text
| Fleurieu (KAN02) | Kanmantoo | Data Deficient [1 old record, probably regionally extinct] |
| Mount Lofty Ranges (FLB01) | Flinders Lofty Block | Endangered (IUCN: EN B2ab(i,ii,iii); D) (Probable Decline) [limited habitat; needs high quality soils, grassy woodlands; used in planting; has disappeared from Mt Bold] |
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. Diversifolia from the Latin 'diversus' meaning different and 'folium' meaning leaf, referring to the species having different shaped leaves on the same plant.
Distribution and status
Found in a few sites in the southern Mount Lofty Ranges in South Australia, growing in forest and along gullies. There is an old collection (1934) from the South-east around Lucindale but this population has not been relocated. Also found in Queensland, New South Wales, Victoria and Tasmania. Native. Very rare in South Australia. Common in the other States.
Herbarium regions: Southern Lofty, South Eastern, Green Adelaide
NRM regions: Adelaide and Mount Lofty Ranges, South East
AVH map: SA distribution map (external link)
Plant description
Erect perennial daisy growing to 50 cm tall with hairy serrated basal leaves. Flowers single large white daisy on a long stalk. Flowering between October and November. Fruits are dried daisy-heads containing numerous seeds. Seeds are rectangular brown seeds to 3.2 mm long and 0.5 mm wide, with short hairs at one end. Seed embryo type is spatulate fully developed.
Seed collection and propagation
Collect seeds between October and December. Collect heads that are drying off and turning brown. The hard brown seeds should dislodge easily. Place the heads in a tray and leave to dry for a week. Then rub the heads gently with your hands 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 can be average to high. This species has physiological dormancy that need to be overcome for the seed to germinate.
| Location | No. of seeds
(weight grams) | Number
of plants | Date
collected | Collection number
Collection location | Date
stored | % Viability | Storage
temperature | BGA
MSB | 5,500 (1.9 g)
2,411 (0.82 g) | 50 | 16-Nov-2006 | PJA138
Southern Lofty | 1-Aug-2007 | 55% | +5°C, -18°C |
| BGA | 2,300 (0.72 g) | | 1-Nov-2006 | RJB70311
Southern Lofty | 1-Aug-2007 | 75% | +5°C, -18°C |
| BGA | 1,300 (0.35 g) | 10 | 24-Nov-2006 | PJA139
Southern Lofty | 1-Jun-2010 | 85% | -18°C |
| BGA | 19,800 (9.17 g) | | 3-Nov-2010 | KHB547
Southern Lofty | 1-Jan-2012 | 85% | +5°C, -18°C |
| BGA | 7,025 (1.75 g) | | 20-Nov-2009 | PJA187
Southern Lofty | 1-Jan-2012 | | -18°C |
| BGA | 1,700 (0.76 g) | | 20-Nov-2008 | PJA188
Southern Lofty | 1-Jan-2012 | 90% | -18°C |
| BGA | 660 (0.27 g) | | 25-Nov-2009 | PJA202
Southern Lofty | 2-May-2017 | 100% | -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:
Display
| Date | Result | T0 | T50 | Pre-treatment | Germination medium | Incubator: Photoperiod / Thermoperiod |
| Sep-12 | 92% | 7 | 7 |
1% agar with 250 mg/L gibberellic acid;
12/12; / 23°C |
| Jul-10 | 84% | 13 | 34 |
1% agar with 250 mg/L gibberellic acid;
Incubated under summer conditions |
| Jul-10 | 69% | 13 | 34 |
1% agar with 250 mg/L gibberellic acid;
Incubated under spring/autumn conditions |
| Jul-10 | 66% | 13 | 27 |
1% agar with 100 mg/L potassium nitrate;
Incubated under winter conditions |
| Jul-10 | 61% | 13 | 21 |
1% agar with 250 mg/L gibberellic acid;
Incubated under winter conditions |
| Jul-10 | 60% | 21 | 34 |
1% agar with 10% smoke water;
Incubated under winter conditions |
| Jul-10 | 56% | 27 | 55 |
1% agar with 100 mg/L potassium nitrate;
Incubated under summer conditions |
| Jul-10 | 53% | 13 | 34 |
1% agar;
Incubated under winter conditions |
| Jul-10 | 45% | 21 | NA |
1% agar;
Incubated under summer conditions |
| Jul-10 | 40% | 21 | NA |
1% agar with 100 mg/L potassium nitrate;
Incubated under spring/autumn conditions |
| Jan-09 | 38% | 14 | NA |
1% agar;
Incubated under winter conditions |
| Jan-09 | 29% | 28 | NA |
1% agar with 250 mg/L gibberellic acid;
Incubated under winter conditions |
| Jul-10 | 29% | 21 | NA |
1% agar with 10% smoke water;
Incubated under summer conditions |
| Jul-10 | 26% | 13 | NA |
1% agar;
Incubated under spring/autumn conditions |
| Jul-10 | 13% | 21 | NA |
1% agar with 10% smoke water;
Incubated under spring/autumn 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)
