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.
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The information presented in this map is only indicative and may contain errors and omissions.
Scientific name: Oldenlandia galioides
Profile last updated:
14 Oct 2024
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 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
- 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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