Indicative distribution
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: Oldenlandia galioides
Profile last updated:
20 Oct 2020
Description
This species, which may also be known by its former name Hedyotis galioides, is a delicate, inconspicuous annual herb, that either hugs the ground or stands erect. It has slender, many branched stems, and paired leaves. The leaves are narrow and 4 – 25 mm long, with margins curved back, and no leaf-stalk. The white flowers are very small, in groups of one to three in the angles of the leaves, on long flower stalks to 2 cm long. The capsules are small and round, hidden within the spent flower, and split to release a small number of tiny seeds.
Distribution
In north-east NSW, known from Whiporie State Forest south of Casino and one location in the Tweed district. Also occurs on the north-west plains of NSW and in Queensland, Northern Territory and Western Australia.
Habitat and ecology
- Margins of seasonally inundated wetlands in paperbark swamps and Forest Red Gum (Eucalyptus tereticornis) woodlands.
Regional distribution and habitat
Click on a region below to view detailed distribution, habitat and vegetation information.
Threats
- Clearing and fragmentation of habitat for development, agriculture and road-works.
- Risk of local extinction because populations small.
- Invasion of habitat by introduced weeds, such as perennial grasses, Singapore daisy, and lantana
- Timber harvesting activities, which may affect small wetlands.
- Inappropriate disturbance regimen from grazing and other activities
- Disturbance from forestry operations including pine plantations
- Changed flood patterns and increased drought
- Pigs degrading vegetation
- Browsing and damage from feral goats
- Overgrazing from stock on private property
Recovery strategies
A targeted strategy for managing this species has been developed under the Saving Our Species program; click
here for details. For more information on the Saving Our Species program click
here
Activities to assist this species
- Ensure adequate buffers to development adjacent to wetlands and woodlands that provide habitat for the species.
- Identify and protect populations during timber harvesting activities.
- Control introduced weeds.
- Protect seasonally inundated wetlands in paperbark swamps and Forest Red Gum Eucalyptus tereticornis woodlands from clearing or development
Information sources
- Porteners, M. and Robertson, G. (2003) Threatened Plants in Western New South Wales: Information Review. (NSW NPWS, Hurstville)
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