Plants of
South Australia
Gonocarpus micranthus ssp. micranthus
Haloragaceae
Creeping Raspwort
Display all 20 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
Enlarge Map
Copy Map
Copy Map
Display IBRA region text

Botanical art

Kath Alcock paintings: 2.

Etymology

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.

Distribution and status

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.
Herbarium regions: Southern Lofty, Kangaroo Island, South Eastern, Green Adelaide
NRM regions: Adelaide and Mount Lofty Ranges, Kangaroo Island, South East
AVH map: SA distribution map (external link)

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 the tip of stems, with numerous reddish flowers. Flowering between December and February. Fruits are small purple-red ovoid fruit to 1 mm long and 0.81 mm wide, with 8-ribbed and scabrous surface. Seeds are considered the same as the fruit.

Seed collection and propagation

Collect seeds between January and April. Collect maturing fruits, those that are fat and turning reddish, by running your hands along the fruit-spikes. 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.

Seeds stored:
  Hide
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
5,250 (1.05 g)
5,250 (1.05 g)
100+15-Feb-2006HPV2936
South Eastern
1-Aug-200665%+5°C, -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.