Plants of
South Australia
Convolvulus eyreanus
Convolvulaceae
Eyre's Bindweed
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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
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Botanical art

Kath Alcock painting: 1.

Etymology

Convolvulus the Latin name of some bindweed, from 'convolvere' meaning to roll together or entwine. Eyreanus named after Edward John Eyre (1815-1901), an English land explorer of the Australian continent, colonial administrator, and a controversial Governor of Jamaica.

Distribution and status

Found in the north-east part of South Australia, growing on inland sand dunes and associated habitats, often growing in Acacia shrublands. Also found in Queensland and New South Wales. Native. Common in South Australia. Rare in the other states.
Herbarium regions: Lake Eyre, Gairdner-Torrens, Flinders Ranges, Eastern, Murray
NRM regions: Eyre Peninsula, South Australian Murray-Darling Basin
AVH map: SA distribution map (external link)

Plant description

Perennial herb with trailing and twining stems. Leaves very variable in shape, upper leaves ovate to oblong, to 35 mm long and 20 mm, acute to rounded, mucronulate, base hastate or sagittate, margin serrate to shallowly lobed, basal lobes often more prominent, terminal lobe entire to shallowly-lobed, dense hairs on both sides. Flower-spike cymose with 1�2 funnel-shaped, off-white to pink flowers. Flowering between August and December. Fruits are light brown globular capsule to 5.5 mm diameter. Seeds are dark brown secteroid seed to 6 mm long and 4mm wide, surface rugose. Seed embryo type is folded.

Seed collection and propagation

Collect seeds between October and February. Collect capsules that are maturing, turning brown and contain hard seeds inside. Capsules can be opened or unopened and some seed can be collected from the ground under the plant. Place the capsules in a tray and leave to dry for one to two weeks. Then rub the capsules gently by hand or with a rubber bung to dislodge the seeds. 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. From one collection, the seed viability was high, at 100%. This species has physical dormancy that needs to be overcome for the seed to germinate (e.g. nicking the seed coat).

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
1,700 (11.9 g)
1,700 (11.9 g)
150+22-Oct-2004MOL4541
Gairdner-Torrens
28-Mar-2006100%-18°C
BGA1,300 (9.9122 g)50+25-Nov-2005DJD249
Eastern
28-Jul-2006100%-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.