Pomaderris gilmourii var. gilmourii - 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: Pomaderris gilmourii var. gilmourii

Conservation status in NSW: Endangered

Commonwealth status: Endangered

Gazetted date: 05 Apr 2024

Profile last updated: 06 Aug 2025

Description

Pomaderris gilmourii var.gilmourii is from the family Rhamnaceae and is one of two Pomaderris gilmourii varieties, the other being Pomaderris gilmourii var. cana (Grey Deua Pomaderris). Pomaderris gilmourii var. gilmourii is a medium sized shrub that grows up to 4 metres in height. The leaves are elliptical and grow up to 35 mm long and 4 – 13 mm wide. Leaves are hairless on the upper surface and have a superficial layer of fine, woolly hairs on the lower surface which gives the leaf a ‘shiny’ appearance. The flowers are cream to yellow, lack petals and form in clusters at the end of branchlets. Pomaderris gilmourii var. gilmourii differs morphologically from its sister species, P.gilmourii var. cana. Pomaderris gilmourii var. cana has a shorter sepal length and does not have superficial hairs on the underside of the leaves which gives it a duller, more grey appearance.

Distribution

Pomaderris gilmourii var. gilmourii’s distribution is restricted to the eastern and western ranges of Deua National Park in southeastern NSW. It is known to occur on rhyolite outcrops, steep slopes and cliffs in the Coondella Trig, Mt Donovan and Bendethera localities. The total number of subpopulations are currently unknown, as many areas of potential habitat in the region are inaccessible due to the steep terrain, making it difficult to survey.

Habitat and ecology

The species occurs in shrubland on skeletal soils formed from rhyolite and is confined to rocky outcrops, knolls and steep cliffs.
Very little is known about the species ecology, including reproductive ecology, seedbank dynamics, fire ecology and life history.
Flowers and buds have been observed throughout the year.
Asexual seed production is known within the Pomaderris genus. Individuals may be genetically identical and have a reduced adaptive capacity.
The species response to fire is currently unknown although most Pomaderris species are obligate seeders and killed by fire.

Regional distribution and habitat

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

South East Corner

Threats

Inappropriate fire regimes may result in plant mortality and a reduction in the soil-stored seedbank, as for other Pomaderris species.
Small, isolated subpopulations may be at risk of extinction from stochastic events and low genetic diversity.
Insufficient understanding of habitat requirements and the extent of suitable habitat.
Insufficient understanding of threatening processes impacting different subpopulations. Many threats are suspected or inferred from other Pomaderris species.
Insufficient knowledge of the appropriate fire regime to ensure recruitment and survival.
Species split within Pomaderris gilmourii varieties based on collections from the 1980’s and small morphological differences. Taxonomy likely requires revisiting.
Potential for the species to be susceptible to Phytophthora cinnamomi, resulting in dieback.
Insufficient understanding of the impact of spread of Phytophthora cinnamomi on the species survival.

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 targeted survey work in areas of suitable habitat (potentially including hard to access areas) to identify other subpopulations of Pomaderris gilmourii var. gilmourii.
Establish a long-term monitoring program to track the species population status over time, determine threatening processes and monitor the effectiveness of management actions.
Ensure appropriate hygiene protocols are adhered to when entering or exiting sites to prevent the incursion or spread of P. cinnamomi. Monitor locations for any evidence of disease.
Monitor the species post fire. Liaise with fire managers to ensure that the species, locations and requirements are included in fire planning. Incorporate knowledge about impacts of fire and optimal fire regime gained through monitoring into management recommendations.
Undertake targeted research into the species taxonomy, population genetics and fire ecology to inform management practices.