Curved Riceflower,
Silky Riceflower
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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
| Kangaroo Island (KAN01) | Kanmantoo | Vulnerable (IUCN: VU D2) [highly localised; on Dudley Peninsula; needs more survey work] |
| Fleurieu (KAN02) | | Near Threatened [undercollected] |
| Mount Lofty Ranges (FLB01) | Flinders Lofty Block | Near Threatened [around foothills, down coast; undercollected] |
| Broughton (FLB02) | | Least Concern |
| Olary Spur (FLB03) | | Least Concern |
| Southern Flinders (FLB04) | | Least Concern |
| Central Flinders (FLB06) | | Near Threatened |
| Southern Yorke (EYB01) | Eyre Yorke Block | Rare (IUCN: RA d(ii)) (Probable Decline) |
| St Vincent (EYB02) | | Rare (IUCN: RA d(ii)) (Probable Decline) [grassy woodland] |
| Eyre Hills (EYB03) | | Least Concern |
| Talia (EYB04) | | Least Concern |
| Eyre Mallee (EYB05) | | Least Concern |
| Murray Mallee (MDD02) | Murray Darling Depression | Near Threatened |
| Lowan Mallee (MDD04) | | Rare (IUCN: RA d(i,ii)) |
| Wimmera (MDD05) | | Vulnerable (IUCN: VU D2) |
| Myall Plains (GAW01) | Gawler | Least Concern |
| Gawler Volcanics (GAW02) | | Least Concern |
| Gawler Lakes (GAW03) | | Rare (IUCN: RA d(i,ii)) |
| Yalata (NUL03) | Nullarbor | Rare (IUCN: RA d(ii)) |
| 2 of 2 subregions | Kanmantoo | Near Threatened , Vulnerable |
| 5 of 6 subregions | Flinders Lofty Block | Least Concern , Near Threatened |
| 5 of 5 subregions | Eyre Yorke Block | Least Concern , Rare |
| 3 of 6 subregions | Murray Darling Depression | Near Threatened , Rare , Vulnerable |
| 3 of 8 subregions | Gawler | Least Concern , Rare |
| Yalata (NUL03) | Nullarbor | Rare (IUCN: RA d(ii)) |
Botanical art
Kath Alcock paintings: 4
Prior names
Pimelea curviflora ssp. micrantha
Pimelea curviflora var. micrantha
Common names
Curved Riceflower
Silky Riceflower
Distribution and status
Herbarium regions: Nullarbor, Flinders Ranges, Eastern, Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula, Southern Lofty, Kangaroo Island, South Eastern, Green Adelaide
NRM regions: Adelaide and Mount Lofty Ranges, Alinytjara Wilurara, Eyre Peninsula, Kangaroo Island, Northern and Yorke, South Australian Arid Lands, South Australian Murray-Darling Basin, South East
AVH map: SA distribution map (external link)
| Location | No. of seeds
(weight grams) | Number
of plants | Date
collected | Collection number
Collection location | Date
stored | % Viability | Storage
temperature | BGA
MSB | 6,400 (6.1 g)
6,400 (6.1 g) | 50+ | 30-Oct-2015 | DJD3213
Northern Lofty | 2-May-2017 | 60% | -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 |
| Jul-16 | 36% | 14 | NA |
dry heat 90°C oven 15 min, 30% hydrogen peroxide 20 min, water rinse, 10% smoke water + 500 mg/L gibberellic acid 24 h;
1% agar;
8 weeks winter, then spring/autumn |
| Jul-16 | 30% | 21 | NA |
30% hydrogen peroxide 20 min, water rinse, 500 mg/L gibberellic acid 24 h;
1% agar;
8 weeks winter, then spring/autumn |
| Jul-16 | 10% | 28 | NA |
30% hydrogen peroxide 20 min, water rinse, 10% smoke water 24 h;
1% agar;
8 weeks winter, then spring/autumn |
| Jul-16 | 2% | 42 | NA |
30% hydrogen peroxide 20 min, water rinse;
1% agar;
8 weeks winter, then spring/autumn |
| Jul-16 | 0% | NA | NA |
dry heat 90°C oven 15 min, 30% hydrogen peroxide 20 min, water rinse;
1% agar;
8 weeks winter, then spring/autumn |
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)
