Seeds of South Australia
Coronidium adenophorum (Compositae)
Branched Everlasting
List of species for Coronidium
Click on an image to enlarge it
Seed collecting:
December to May
Herbarium regions:
Murray, Kangaroo Island, South Eastern
NRM regions:
Kangaroo Island, South Australian Murray-Darling Basin, South East
IBRA regions
Kangaroo Island (KAN01)Kanmantoo
 Least Concern   [fairly widespread, esp after fire; endemic]
Murray Mallee (MDD02)Murray Darling Depression
 Regionally Extinct   [presumed extinct]
Lowan Mallee (MDD04) 
 Rare   (IUCN: RA d(ii))   [fire dependent ]
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. Adenophorum meaning to bear or produce glands; referring to sticky glands on the stems and leaves.
Distribution:
Found on Kangaroo Island and in the Murray in South Australia, growing in heath or woodland where it readily regenerates from seed after fire. Also found in Victoria.
Status:
Native. Uncommon in South Australia. Rare in Victoria. More common post fire.
Plant description:
Erect, single-stemmed annual or biennial herb to 50 cm high. Stem glandular-hirsute. Leaves sessile, linear, to 6 cm long, glandular-hirsute and scabrous above, with sessile and stipitate-glandular hairs below, margins recurved, apex acuminate, base slightly auriculate. Flower-heads solitary, to 4.5 cm diameter, closely subtended by several leafy linear bracts with white (or pink in bud) daisy-flower. Flowering between October and March.
Fruit type:
Dried papery daisy-head.
Seed type:
Brown oblong seed to 2 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 one collection, the seed viability was average, at 60%.
Seed germination:
This species is considered a fire responsive species.