Plants of
South Australia
Ammannia multiflora
Lythraceae
Jerry-jerry
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Regional Species Conservation Assessments per IBRA subregion.
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Botanical art

Kath Alcock painting: 1.

Etymology

Ammannia named after Johannes Ammann (1707-1741), a Swiss botanist, Fellow of the Royal Society of London and Professor of botany at St Petersburg. Multiflora from the Latin 'multus' meaning many and 'floris' meaning flower.

Distribution and status

Found in the north-eastern part and alon gthe Murray River in South Australia, growing on flood plains of rivers and creeks. Also found in all mainland states. Native. Common in South Australia. Common in the other states.
Herbarium regions: North Western, Lake Eyre, Gairdner-Torrens, Flinders Ranges, Murray
NRM regions: Alinytjara Wilurara, South Australian Arid Lands, South Australian Murray-Darling Basin
AVH map: SA distribution map (external link)

Plant description

Erect, rigidly-branched herb with 4-angled stems, up to 60 cm high. Leaves narrow-oblong to lanceolate to 50 mm long and 8 mm wide, upper surface minutely scabrous. Peduncles up to 6 mm long. Flowers pink to purple. Flowers throughout the year. Fruits are reddish, papery globular capsule to 2 mm diameter. Seeds are very small concave brown seed to 0.4 mm long and 0.4 mm wide.

Seed collection and propagation

Collect seeds between January and December. Fruit can be collected all year round but is dependent on rainfall. Collect mature capsules, those that are turning reddish brown in colour and contain brown seeds. Whole stem containing many clusters of fruit can be collected. Place the capsules in a tray and leave to dry for two weeks. Then rub the capsules gently by hand to dislodge the seeds. Use a sieve to separate the unwanted material. Be very careful as the seeds are very small. 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. From two collections, the seed viability were high, at 100%. Seeds are non-dormant, viable seed should germinate readily.

Seeds stored:
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LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
325,000 (5.9 g)
325,000 (5.9 g)
8-May-2007RJB71589
Lake Eyre
1-Aug-2007100%-18°C
BGA389,000 (5.14 g)3026-Sep-2007DJD871
Lake Eyre
19-Sep-2008100%-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.