Connie's Guinea Flower - 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: Hibbertia circinata

Conservation status in NSW: Critically Endangered

Commonwealth status: Critically Endangered

Gazetted date: 15 Nov 2019

Profile last updated: 23 Feb 2024

Description

Hibbertia circinata is an erect shrub to 1.5 m tall with woolly new growth on stems. Leaves are 15-55 mm long and 5-8 mm wide, dark green on top and pale grey-green below. Hairs on the upper leaf surface are tightly coiled when young. The solitary flowers arise in leaf axils. The five yellow petals are 9–13 mm long and 7–11 mm wide. Flowering has been observed at most times of the year but is most prolific in spring.

Distribution

Known only from the summit area of Mt Imlay, south-west of Eden on the South Coast of New South Wales.

Habitat and ecology

Mainly occurs in shrubby woodland dominated by Eucalyptus sieberi with a diverse understorey including Boronia imlayensis, Oxylobium ellipticum, Xanthorrhoea australis, Tetratheca subaphylla, Dillwynia glaberrima, and Amperea xiphoclada. Some plants grow beneath the canopy of the endangered mallee E. imlayensis on the eastern face of Mt Imlay or beneath E. fraxinoides below the northern edge. The species occurs in a very narrow elevation range between about 800 and 850 m a.s.l.

Regional distribution and habitat

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

South East Corner

Threats

Infection of plants by Phytophthora cinnamomi
The species is known from only one site with an estimated population of 200 genetic individuals.
Infection of plants by Phytophthora cinnamomi
High frequency fire from lightning strikes, potential escaped hazard reduction burns, and aerial ignitions in the surrounding production forest downslope, as well as increased risk of wildfires from climate change.

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

Collect and store seed, and maintain an ex-situ population.
Assess efficacy of phosphite for protection against Phytophthora cinnamomi.
If suitable, apply phosphite periodically for protection against Phytophthora cinnamomi.

IBRA Bioregion	IBRA Subregion	Known or predicted	Geographic restrictions region

South East Corner

South East Coastal Ranges

Known

None

Images

Hibbertia circinata near the summit of Mt Imlay, south-eastern NSW. The flowers are relatively large and showy for a Hibbertia. The irregular teeth at the apex of some leaves are atypical.
Enlarge image

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