Seeds of South Australia
Convolvulus eyreanus (Convolvulaceae)
Eyre's Bindweed
List of species for Convolvulus
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Seed collecting:
October to February
Herbarium regions:
Lake Eyre, Gairdner-Torrens, Flinders Ranges, Eastern, Murray
NRM regions:
Eyre Peninsula, South Australian Murray-Darling Basin
IBRA regions
SUMMARY
Central Flinders (FLB06)Flinders Lofty Block
 Least Concern
Gawler Lakes (GAW03)Gawler
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Arcoona Plateau (GAW04) 
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Torrens (GAW06) 
 Near Threatened
Roxby (GAW07) 
 Near Threatened
Dieri (SSD03)Simpson Strzelecki Dunefields
 Least Concern
Warriner (SSD04) 
 Least Concern
Strzelecki Desert (SSD05) 
 Least Concern
Oodnadatta (STP02)Stony Plains
 Least Concern
Murnpeowie (STP03) 
 Least Concern
Peake-Dennison Inlier (STP04) 
 Least Concern
Witjira (STP06) 
 Near Threatened
Baltana (STP07) 
 Least Concern
Sturt Stony Desert (CHC02)Channel Country
 Least Concern
Diamantina-Eyre (CHC04) 
 Least Concern
Coongie (CHC06) 
 Least Concern
IBRA regions
DISPLAY ALL
Central Flinders (FLB06)Flinders Lofty BlockLeast Concern
4 of 8 subregionsGawlerNear Threatened
, Rare
3 of 4 subregionsSimpson Strzelecki DunefieldsLeast Concern
5 of 7 subregionsStony PlainsLeast Concern
, Near Threatened
3 of 4 subregionsChannel CountryLeast Concern
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 Convolvulus]
SA Flora:
Flora of South Australia Edition 5
Name derivation:
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:
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.
Status:
Native. Common in South Australia. Rare in the other states.
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.
Fruit type:
Light brown globular capsule to 5.5 mm diameter.
Seed type:
Dark brown secteroid seed to 6 mm long and 4mm wide, surface rugose.
Embryo type:
Folded.
Seed collecting:
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.
Seed cleaning:
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.
Seed viability:
From one collection, the seed viability was high, at 100%.
Seed germination:
This species has physical dormancy that needs to be overcome for the seed to germinate (e.g. nicking the seed coat).
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
1492 (10.45 g)
1700 (11.9 g)
>15022-Oct-2004MOL 4541
Gairdner-Torrens
28-Mar-2006100%-18°C
BGA1300 (9.9122 g)50+DJD249
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.