Seeds of South Australia
Coronidium gunnianum (Compositae)
Pale Everlasting
List of species for Coronidium
Display more images
Click on an image to enlarge it
Seed collecting:
December to March
Herbarium regions:
Murray, Southern Lofty, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, South Australian Murray-Darling Basin, South East
IBRA regions
Fleurieu (KAN02)Kanmantoo
 Endangered   (IUCN: EN B2ab(i,ii,iii))   (Probable Decline)   [in redgum grassy woodland, along water courses; in Kuitpo Forest area; confused with scorpioides; weeds a threat ; highly restricted, clonal, mat-forming]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Endangered   (IUCN: EN B2ab(i,ii,iii))   (Probable Decline)   [in redgum grassy woodland, along water courses; found in Mt Bold & other areas; confused with scorpioides; weeds a threat ; highly restricted, clonal, mat-forming]
Broughton (FLB02) 
 Critically Endangered   (IUCN: CR C1+2a(i))   (Probable Decline)   [Possibly one population, habitat specific, goats]
RSCA map:
Regional Species Conservation Assessments per IBRA subregion. Please click the thumbnail map.
AVH map:
Australian distribution map (external link)
SA Census:
Census of South Australian plants (external link)     [genus Coronidium]
Name derivation:
Coronidium from the Greek 'korone' meaning a crown and the diminutive '-idion'; referring to the short pappus crown that in the Coronidium oxylepis group of species remains on the cypsela after the pappus bristles have broken near their base and fallen away. Gunnianum named after Ronald Campbell Gunn (1808-1881), a pioneer botanist and scientist in Tasmania and collector of the tyre specimen.
Distribution:
Found in the southern Mount Lofty Ranges, Burra Gorge and a single record from the lower South-east in South Australia, growing in grasslands and riverine woodlands on soils that are prone to inundation. Also found in New South Wales, Victoria and Tasmania.
Status:
Native. Rare in South Australia. Rare in the other states.
Plant description:
Erect rhizomatous perennial herb to 50 cm high, sparingly branched with stems covered in appressed cottony hairs. Leaves linear to oblanceolate, attenuate at base, to 65 mm long and 9 mm wide, discolorous, firm-textured, upper surface smooth, glabrous or with sparse, appressed cottony hairs, sometimes with scattered glands, lower surface obscured by appressed cottony indumentum, with abundant sessile glands, apex acuminate, slightly thickened but not mucronate, margins recurved to revolute. Flower heads solitary, subglobular to depressed-turbinate to 25 mm diameter with pale yellow to brownish-yellow daisy flowers. Flowering between November to March.
Fruit type:
Dried papery daisy-head.
Seed type:
Brown oblong seed to 3 mm long and 1 mm wide, with long white feather-liked pappus.
Embryo type:
Spatulate.
Seed collecting:
Collect whole heads that are drying off or collect just the seeds by plucking it out of the centre of the daisy-flower with your fingers. Mature seeds are easily removed.
Seed cleaning:
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.
Seed viability:
From five collections, the seed viability were low to high, ranging from 10% to 90%.
Seed germination:
Seeds are non-dormant, viable seed should germinate readily.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA21000 (3.1 g)50-10019-Apr-2007DJD797
Southern Lofty
1-Aug-200710%+5°C, -18°C
BGA2500 (0.474 g)30+14-Feb-2008KHB122
Southern Lofty
19-Sep-200850%+5°C, -18°C
BGA900 (0.28 g)5+21-Feb-2008KHB123
Southern Lofty
19-Sep-200850%-18°C
BGA4000 (0.66 g)20+24-Feb-2009TST720
Southern Lofty
20-Jul-200980%-18°C
BGA1000 (0.25 g)I large clum9-Feb-2011KHB558
Southern Lofty
1-Jan-201290%-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.