Grevillea raybrownii - profile

Indicative distribution

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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: Grevillea raybrownii

Conservation status in NSW: Vulnerable

Commonwealth status: Vulnerable

Gazetted date: 31 May 2019

Profile last updated: 25 Feb 2024

Description

Distribution

Habitat and ecology

All natural remnant sites occur within a habitat that is both characteristic and consistent between sites.
Generally occurs on ridgetops and, less often, slopes and benches of Hawkesbury Sandstone and Mittagong Formation
It occurs in Eucalyptus open forest and woodland with a shrubby understorey on sandy, gravelly loam soils derived from sandstone that are low in nutrients.
Killed by fire and relies entirely on seed that is stored in the soil for regeneration.
Recruitment appears to be promoted by fire or other disturbances.

Regional distribution and habitat

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

Sydney Basin

Threats

Loss and fragmentation of habitat through clearing and development.
Inappropriate fire regimes (either lack of fire or high frequency fire) impacting recruitment.
Inappropriate disturbance regimes from either lack of disturbance leading to increased competition, or too much disturbance which impacts reproduction.
People using remnant bushland for recreation (e.g. bike trails) and disturbing critical habitat, individuals and substrate.

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 0 priority actions to help recover the Grevillea raybrownii in New South Wales.

Activities to assist this species

Implement appropriate fire management practices to ensure fire frequency is not too high so that a soil seed bank is maintained
Protect known habitat areas from clearing and disturbance.
Undertake ecological research into the life history and species ecology of this species.
Restrict access by fencing.
Control the spread of pathogens, especially Phytophthora cinnamomi.
Restore degraded habitat using bush regeneration techniques.