Seeds of South Australia
Ceratogyne obionoides (Compositae)
List of species for Ceratogyne
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Seed collecting:
October to November
Herbarium regions:
Gairdner-Torrens, Eyre Peninsula
NRM regions:
Eyre Peninsula, South Australian Arid Lands
IBRA regions
Eyre Hills (EYB03)Eyre Yorke Block
 Rare   (IUCN: RA d(ii))   [common after winter rains]
Eyre Mallee (EYB05) 
 Rare   (IUCN: RA d(ii))   [common after winter rains]
Myall Plains (GAW01)Gawler
 Rare   (IUCN: RA d(ii))   [common after winter rains]
Gawler Volcanics (GAW02) 
 Rare   (IUCN: RA d(ii))   [common after winter rains]
Kingoonya (GAW05) 
 Rare   (IUCN: RA d(ii))
Yellabinna (GVD06)Great Victoria Desert
 Rare   (IUCN: RA d(ii))
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 Ceratogyne]
Name derivation:
Ceratogyne from the Greek 'keratos' meaning a horn and 'gyne' meaning female, referring to the horn-like appendages on the achene. Obionoides meaning resembling the genus Obione; may be referring to the similarity of the genus fruiting clusters and fruit shape being similar in profile to Obione pedunculata.
Found on upper Eyre Peninsula in South Australia growing on sandhills. Also found in Western Australia, New South Wales and Victoria..
Native. Uncommon in South Australia. Rare in New South Wales and Victoria. Common in Western Australia.
Plant description:
Annual or ephemeral herb to 15 cm high with several ascending, unbranched or few-branching, hairy stems. Leaves green or red. Basal leaves oblanceolate, attenuate at the base, to 18 mm long and 4 mm wide, entire, pubescent with a prominent mid-vein; stem leaves oblanceolate to oblong, acute to 10 mm long and 3 mm wide, entire, pubescent. Flowers yellow. between September and November. 
Fruit type:
Red to brown loose clustered head.
Seed type:
Red to brown, horse head-shaped seed to 4 mm long and 1.5 mm wide, margin curved inward with two horn-like projections, covered in scattered hairs.
Embryo type:
Seed collecting:
Collect seeds that are maturing, turning red or brown by plucking it off with your fingers. Mature seeds are easily removed.
Seed cleaning:
Place the seeds in a tray for a week to dry. No further cleaning is required if only the seeds are collected. If collected with other material, then use a sieve to separate any 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:
From one collection, the seed viability was average, at 70%.