Eucalyptus mcquoidii
Overview
Eucalyptus mcquoidii is a tree in the family Myrtaceae, part of the broader eucalypt group characterised by fibrous or smooth bark, leathery evergreen leaves, and woody fruit capsules that release seed following flowering. Like other eucalypts, it produces nectar-rich blossoms that support pollinating insects and birds, and its foliage and structure contribute habitat and shelter within the plant communities it occupies. As a long-lived woody perennial, it plays a structural role in the vegetation types it inhabits, contributing to soil stabilisation and providing microhabitat for associated flora and fauna.
The species is endemic to Australia, where it is associated with rocky terrain, the margins of permanent rivers and streams, and coastal to supratidal zones. This combination of habitats suggests a degree of ecological specialisation, with populations likely restricted to specific substrates and hydrological conditions.
Eucalyptus mcquoidii is classified as Vulnerable, with a population trend currently assessed as stable. Ongoing threats include land clearing for agriculture, urban and infrastructure development, and mining and quarrying activity, all of which reduce and fragment available habitat. The species' small population size and resulting genetic isolation compound its vulnerability, limiting adaptive capacity.
Altered fire regimes present an additional pressure, potentially affecting regeneration cycles and seedling survival.
Conservation attention for the species is embedded within broader Australian frameworks for threatened flora, including habitat protection measures, monitoring of known populations, and land-use planning controls intended to limit further clearing near sensitive sites.
Given its stable population trend, the species' near-term outlook appears steady, though its Vulnerable status and ongoing habitat pressures indicate that continued monitoring and habitat protection remain necessary to prevent future decline.
Eucalyptus mcquoidii faces ongoing pressure from land being cleared for farming, housing, and infrastructure development, as well as mining and quarrying activities that destroy or fragment its habitat. Because remaining populations are small and isolated from one another, the species has limited genetic diversity, making it more vulnerable to disease and environmental changes, while shifts in natural fire patterns add further stress. These combined threats appear to be ongoing and stable rather than clearly worsening, though the small population size means the species remains highly vulnerable.
Habitat
Eucalyptus mcquoidii occurs in open woodland and shrubland communities on sandy soils in the wheatbelt region of southwestern Western Australia. The species typically grows in areas with Mediterranean climate conditions, often associated with granite outcrops and lateritic soils.
Conservation measures underway
Other threatened species in MYRTACEAE
Threatened in Australia
Frequently asked questions
Why is Eucalyptus mcquoidii classified as Vulnerable?
Where does Eucalyptus mcquoidii live?
What are the main threats to Eucalyptus mcquoidii?
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