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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click here to see geographic restrictions).
The information presented in this map is only indicative and may contain errors and omissions.
Scientific name: Triplarina imbricata
Profile last updated:
04 Apr 2023
Description
Creek Triplarina is an open shrub with fine upright or weeping branches, growing about 2.8 m in height. Its bark is grey and scaly. The paired leaves are flat, narrow-oval in shape, 4 mm or less in length, broader towards the tips and have blunt ends. Large oil dots, obvious on the back of the leaf, release a strong menthol smell. The little white flowers are borne in pairs, developing into dry hemispherical fruits containing tiny seeds. This is a newly recognised species previously thought to be the part of Baeckea camphorata.
Distribution
Found only in a few locations in the escarpment ranges and near Tabulam in north-east NSW. The species was previously recorded in Parramatta, near Sydney, however, the species is no longer thought to occur in this area.
Habitat and ecology
- Occurs along watercourses in low open forest with Water Gum (Tristaniopsis laurina) or in montane bogs, often with Baekea amissa.
Regional distribution and habitat
Click on a region below to view detailed distribution, habitat and vegetation information.
Threats
- Habitat loss and fragmentation as a result of clearing for agriculture.
- Invasion of habitat by weeds, particularly Small-leaved Privet and Lantana.
- Trampling by domestic stock.
- Damage to plants by visitors to riverside recreation spots.
- Risk of local extinction because populations are small.
- Physical damage, particularly to roadside populations due to vehicles and associated roadworks.
- Inappropriate fire regime.
- Myrtle rust.
Recovery strategies
Priority actions are the specific, practical things that must be done to recover a threatened species, population or ecological
community. The Office of Environment and Heritage has identified
13 priority actions
to help recover the Creek Triplarina in New South Wales.
Activities to assist this species
- Protect creek-bank vegetation from disturbance by recreational users and cattle.
- Implement appropriate fire regime for species habitat, avoid very high frequency fire or prolonged fire free intervals where the soil seedbank would be depleted or habitat structure changes.
- Control weeds in areas of known habitat.
- Expand and connect remnants of known habitat.
- Monitor populations dynamics and threats at known populations.
- Exclude cattle from known populations.
- Maintain viable ex-situ seebank.
- Facilitate recruitment at known populations.
- Protect roadside populations from disturbance.
- Undertake surveys to identify unrecorded populations.
- Notify the OEH of additional occurrences of Creek Triplarina.
Information sources
- NSW National Parks and Wildlife Service (2002) Threatened Species of the Upper North Coast of NSW: Flora. (NSW NPWS, Coffs Harbour)
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