Imlay Mallee - 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: Eucalyptus imlayensis

Conservation status in NSW: Critically Endangered

Commonwealth status: Critically Endangered

Gazetted date: 11 Dec 2009

Profile last updated: 14 Oct 2024

Description

Imlay Mallee shows the typical multi-stemmed mallee form and grows to 7 m high. The smooth bark sheds in ribbons from the stems; it is green when fresh and ages to orange-brown and grey. The paired juvenile leaves are oval and stalkless; adult leaves are thick and glossy green. The axillary inflorescences are always three-flowered; the stalk is flattened, and the stalks of the individual flowers are very short or absent. The cup-shaped fruits have a prominent surrounding disc.

Distribution

This species is found on the upper slopes of Mt Imlay, in Mt Imlay National Park near Eden. Only 80 plants are known in a single population.

Habitat and ecology

Grows in shrubland on a steep, rocky, east facing slope; associated species include Leptospermum scoparium, Boronia muelleri and Prostanthera walteri.
Plants resprout from large lignotubers.
There are no juvenile plants in the population.

Regional distribution and habitat

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

South East Corner

Threats

At risk from catastrophic events because of small number of extant populations and low number of plants.
Possibly affected by the root dieback fungus Phytophthora cinnamomi and gall-forming psyllids.
Fire response is unknown, though the large lignotubers suggest they would recover well.
No fruit has resulted from flowering for the past four years.
Lack of knowledge regarding the potential causes of this species decline.

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

Propagate plants from seed or cuttings.
No prescribed burning in the population.
Continue monitoring of plant health.
Conduct experimental spray trial with phosphite, to combat dieback.
Determine susceptibility to fungal dieback Phytophthora cinnamomi.

Information sources

Brooker, M. and Kleinig, D.A. (1999) Field guide to eucalypts, Volume 1: South-eastern Australia. 2nd edn. Blooming Books, Hawthorn.
Harden, G.J. (ed.) (2002) Flora of New South Wales. Volume 2, Revised Edition. UNSW, Sydney.

IBRA Bioregion	IBRA Subregion	Known or predicted	Geographic restrictions region

South East Corner

South East Coastal Ranges

Known

South of Bega River

Images

Imlay Mallee, Keith McDougall Image 1 of 5.
View slideshow.

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