Bindweed - profile

Indicative distribution

Loading map...

Key:

known

predicted

The areas shown in pink and/purple are the sub-regions where the species or community is known or predicted to occur. They may not occur thoughout the sub-region but may be restricted to certain areas. ( click here to see geographic restrictions). The information presented in this map is only indicative and may contain errors and omissions.

Scientific name: Convolvulus tedmoorei

Conservation status in NSW: Endangered

Commonwealth status: Not listed

Gazetted date: 13 Dec 2002

Profile last updated: 16 Aug 2022

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. Fruit capsule spherical, 6-7 mm long and wide, hairless and 2-segmented.

Convolvulus tedmoorei is distinguished from other species within the genus by its more prostrate and fleshy habit, its coarse stems, and its larger capsules and seeds. The seed surface structure is also a diagnostic feature as is the lack of a wing on the seed.

Distribution

This species has been recorded from northern inland areas of South Australia, south-wstern Queensland and western NSW. There are few known records from NSW: two areas on the Murrumbidgee and Darling River floodplains in central-western NSW (from Toganmain Station, Darlington Point, and from a locality 8km north-west of Louth); and two other records from east of Broken Hill on the road to Wilcannia, and from the Menindee Road, Scarsdale.

Habitat and ecology

Convolvulus tedmoorei is a perennial forb.
Grows in self-mulching grey clay soils on the floodplains of the Darling and Murrumbidgee Rivers.
Flowering specimens of Convolvulus tedmoorei were collected in late winter (August) and early spring (September).
Disturbance regimes are not known, although the species may require periodic flooding of its habitat to maintain the wet conditions suitable for seed set and germination.
Other species of Convolvulus from western NSW possess a thick taproot that aids their persistence during dry periods; also, Convolvulus species can produce hard-coated seed that can lie dormant in the soil for long periods.

Regional distribution and habitat

Click on a region below to view detailed distribution, habitat and vegetation information.

Threats

Lack of ecological information.
Lack of distributional information.
Habitat modification and loss as a consequence of land use.
The apparent small size and isolation of known populations renders it vulnerable to local extinction.
Insufficient understanding of threats.

Recovery strategies

A Saving Our Species conservation project is currently being developed for this species and will be available soon. For information on how you can contribute to this species' recovery, see the Activities to assist this species section below.

Activities to assist this species

Undertake surveys in the vicinity of known populations and in potential habitat elsewhere.
Identify threats and specific recovery strategies at extant locations.
Establish an ex-situ population.
Communicate importance of local populations to private landholders and land managers in order to promote sympathetic management of species.
Protect sites from intensive grazing and cultivation.
Improve knowledge of species' biology and ecology in order to inform conservation measures.

Information sources

Johnson, R.W. (2001) A taxonomic revision of Convolvulus L. (Convolvulaceae) in Australia. Austrobaileya 6(1): 1-39
NSW Scientific Committee (2002) Convolvulus tedmoorei (a perennial plant) - Endangered species determination - final.

IBRA Bioregion	IBRA Subregion	Known or predicted	Geographic restrictions region

Broken Hill Complex	Barrier Range	Predicted	None
Broken Hill Complex	Barrier Range Outwash	Predicted	None
Darling Riverine Plains	Castlereagh-Barwon	Predicted	None
Darling Riverine Plains	Louth Plains	Predicted	None
Darling Riverine Plains	Menindee	Predicted	None
Darling Riverine Plains	Wilcannia Plains	Predicted	None
Riverina	Murrumbidgee	Predicted	None

Related information

Get involved

Report a sighting

Nature conservation

Threatened species