Seeds of South Australia
Gonocarpus micranthus ssp. micranthus (Haloragaceae)
Creeping Raspwort
List of species for Gonocarpus
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Seed collecting:
January to April
Herbarium regions:
Southern Lofty, Kangaroo Island, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Kangaroo Island, South East
IBRA regions
Mount Gambier (SVP02)Southern Volcanic Plain
 Rare   (IUCN: RA d(i,ii))   [restricted to ephemeral swamps]
Glenelg Plain (NCP02)Naracoorte Coastal Plain
 Rare   (IUCN: RA d(ii))   [restricted to ephemeral swamps]
Kangaroo Island (KAN01)Kanmantoo
 Vulnerable   (IUCN: VU D2)   [localised on roadsides]
Fleurieu (KAN02) 
 Rare   (IUCN: RA d(ii))   [persists; water dependent]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Vulnerable   (IUCN: VU B2ab(i,ii,iii); D2)   (Probable Decline)   [decline in Cleland (walking tracks), also in Mylor (Boyle Swamp)]
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 Gonocarpus]
Name derivation:
Gonocarpus from the Greek 'gonia' meaning angle, corner and 'carpos' meaning fruit; referring to its ribbed fruits. Micranthus from the Greek 'micros' meaning small and 'anthos' meaning flower; alluding to its tiny flowers.
Found on Kangaroo Island, southern Mount Lofty Ranges and the lower South-east in South Australia, growing on wet, peaty soils. Also found in Queensland, New South Wales, Victoria and Tasmania.
Native. Rare in South Australia. Rare in Queensland. Common in the other states.
Plant description:
Prostrate or ascending, much-branched herb to 10 cm high, with smooth stems, rooting at the nodes and forming mats in open areas. Leaves opposite, ovate to circular, to 15 mm long and 11 mm wide, base rounded or cordate, margins thickened with many small teeth, glabrous. Inflorescence erect, branching leafy-spike at terminal of stems with numerous reddish flowers. Flowering between December and February.
Fruit type:
Small purple-red ovoid fruit to 1 mm long and 0.81 mm wide, with 8-ribbed and scabrous surface.
Seed type:
Considered the same as the fruit.
Seed collecting:
Collect maturing fruits, those that are fat and turning reddish, by running your hands along the fruit-spikes.
Seed cleaning:
Place the fruit in a tray and leave to dry for 1 to 2 weeks. No further cleaning is required if only fruits were collected. If collected with other material, use a sieve to separate the 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.