Satin Everlasting,
Coast Everlasting
Display all 13 images
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
Bridgewater (NCP01) | Naracoorte Coastal Plain | Least Concern |
Glenelg Plain (NCP02) | | Vulnerable (IUCN: VU D2) [only pop known in Honans] |
Lucindale (NCP03) | | Least Concern |
Tintinara (NCP04) | | Least Concern |
Kangaroo Island (KAN01) | Kanmantoo | Least Concern [widespread in coastal areas] |
Fleurieu (KAN02) | | Least Concern |
Mount Lofty Ranges (FLB01) | Flinders Lofty Block | Near Threatened |
Broughton (FLB02) | | Least Concern |
Olary Spur (FLB03) | | Least Concern |
Southern Flinders (FLB04) | | Least Concern |
Southern Yorke (EYB01) | Eyre Yorke Block | Least Concern |
St Vincent (EYB02) | | Least Concern |
Eyre Hills (EYB03) | | Least Concern |
Talia (EYB04) | | Least Concern |
Eyre Mallee (EYB05) | | Least Concern |
South Olary Plain (MDD01) | Murray Darling Depression | Near Threatened [edge of range] |
Murray Mallee (MDD02) | | Least Concern |
Murray Lakes and Coorong (MDD03) | | Least Concern |
Lowan Mallee (MDD04) | | Least Concern |
Wimmera (MDD05) | | Rare (IUCN: RA d(i,ii)) |
Murray Scroll Belt (RIV06) | Riverina | Rare (IUCN: RA d(ii)) [marginal] |
Myall Plains (GAW01) | Gawler | Least Concern |
Gawler Volcanics (GAW02) | | Least Concern |
Yellabinna (GVD06) | Great Victoria Desert | Least Concern |
Yalata (NUL03) | Nullarbor | Least Concern |
4 of 4 subregions | Naracoorte Coastal Plain | Least Concern , Vulnerable |
2 of 2 subregions | Kanmantoo | Least Concern |
4 of 6 subregions | Flinders Lofty Block | Least Concern , Near Threatened |
5 of 5 subregions | Eyre Yorke Block | Least Concern |
5 of 6 subregions | Murray Darling Depression | Least Concern , Near Threatened , Rare |
Murray Scroll Belt (RIV06) | Riverina | Rare (IUCN: RA d(ii)) [marginal] |
2 of 8 subregions | Gawler | Least Concern |
Yellabinna (GVD06) | Great Victoria Desert | Least Concern |
Yalata (NUL03) | Nullarbor | Least Concern |
Botanical art
Kath Alcock paintings: 5
Common names
Satin Everlasting
Coast Everlasting
Etymology
Helichrysum from the Greek 'helios' meaning sun and 'chrysos' meaning gold, alluding to the yellow patent laminae of the involucres of some everlastings. Leucopsideum from Greek meaning white, referring to the appearance of the species.
Distribution and status
Found in the southern South Australia, growing on deep sand in mallee vegetation or coastal scrub. Also found in Western Australia, New South Wales, Victoria and Tasmania. Native. Common in South Australia. Common in the other States.
Herbarium regions: Nullarbor, Flinders Ranges, 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)
Plant description
Deep-rooted perennial herb to 50 cm tall with a woody rhizome or rootstock. Stems several, branched or unbranched; erect to ascending, with sparse to moderately-dense woolly-cobwebby hairs and scattered, inconspicuous glandular hairs. Leaves linear-elliptic to narrowly oblanceolate or linear, with narrowly recurved margins, to 50 mm long and 5 mm wide; upper side sparsely cobwebby-hairy, underside densely woolly-cobwebby with scattered minute glandular hairs on both sides. Flower-heads terminal, usually solitary on long leafy stems or sometimes 2 or 3 in an open cluster with white daisy flowers. Flowering between October and December. Fruits are white, dry, papery daisy-head. Seeds are brown oblong seed to 2.5 mm long and 0.8 mm wide, with pappus to 4-times the seed length. Seed embryo type is spathulate.
Seed collection and propagation
Collect seeds between December and February. Collect whole heads that are drying off and fluffy or collect just the seeds by plucking it off with your fingers. Mature seeds are easily removed. Place the heads in a tray for a week to dry. Then pluck the seeds from the head with your finders. Viable seeds will be fat and brown. 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. Seeds are non-dormant, viable seed should germinate readily.
Location | No. of seeds (weight grams) | Number of plants | Date collected | Collection number Collection location | Date stored | % Viability | Storage temperature | BGA MSB | 10,685 (6.62 g) 10,685 (6.62 g) | 100+ | 16-Dec-2003 | PJA64 Yorke Peninsula | 23-Mar-2006 | | -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 |
Mar-15 | 74% | 7 | 14 |
250 mg/L gibberellic acid 24 h; 1% agar; Incubated under spring/autumn conditions |
Mar-15 | 70% | 7 | 21 |
1% agar; Incubated under winter conditions |
Mar-15 | 62% | 7 | 14 |
250 mg/L gibberellic acid 24 h; 1% agar; Incubated under winter conditions |
Mar-15 | 52% | 7 | 49 |
1% agar; Incubated under summer conditions |
Mar-15 | 50% | 7 | 28 |
1% agar; Incubated under spring/autumn conditions |
Mar-15 | 34% | 7 | NA |
250 mg/L gibberellic acid 24 h; 1% agar; Incubated under summer 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)