Seeds of South Australia
Convolvulus tedmoorei (Convolvulaceae)
Giant Convolvulus
List of species for Convolvulus
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Seed collecting:
March to October
Herbarium region:
Lake Eyre
NRM region:
South Australian Arid Lands
IBRA regions
Breakaways (STP01)Stony Plains
 Near Threatened   [(no records), newly recognised for SA]
Coongie (CHC06)Channel Country
 Vulnerable   (IUCN: VU D2)   [(no records in BDBSA), newly recognised for SA; only known from 1 location, 8 records in Census]
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. Tedmoorei named after Charles William Edwin (Ted) Moore (1908-2003), who undertook extensive ecological surveys and studies, mostly in western New South Wales and collector of the type specimen.
Distribution:
Found in the north-east corner of South Australia, growing on alluvial plains on self-mulching grey clay and silty soils, often with gibbers, in grasslands and Atriplex shrublands and in gypseous areas and floodouts. Also found in Queensland and New South Wales.
Status:
Native. Uncommon in South Australia. Rare in the other states.
Plant description:
Perennial herb with trailing stems. Leaves similar in shape from base to tip of the stem, in upper parts leaves shorter and with narrower lobes, blades heart-shaped, sparsely hairy. Flowers commonly 2 in each leaf axil, funnel-shaped, 5-lobed, white to pink, about 7 mm long and 8 mm diameter, flared to about 4.5 mm above base of the tube. Flowering between March and September.
Fruit type:
Brown spherical capsule to 7 mm long and wide, hairless and 2-segmented.
Seed type:
Dark brown toblack secteroid seed to 3 mm long and 3 mm wide, surface finely 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 90%.
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
2750 (32.38 g)
2750 (32.38 g)
13-Mar-2007RJB70945
Gairdner-Torrens
1-Aug-200790%+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.