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australian native vegetation assessment 2001 - National Program ...

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Mallee (Eucalyptus gracilis, Beyeria opaca, Triodia<br />

sp.) Calperum, near Renmark, South Australia<br />

Mallee woodlands and shrublands<br />

Grow from lignotubers and are multibranched<br />

trees found in harsh site<br />

conditions usually with a flattened canopy<br />

which, in windswept coastal areas of<br />

Australia, can be stunted or angled<br />

Located in the winter rainfall belts of semiarid<br />

areas of southern Australia, in southwestern<br />

New South Wales, north-western<br />

Victoria, southern South Australia and<br />

south-western Western Australia<br />

Widespread mallee species include<br />

Eucalyptus Dumosa (white mallee), E.<br />

socialis (red mallee), E. gracilis (yorrell), E.<br />

oleosa (red mallee), E. incrassata (ridgefruited<br />

mallee) and E. diversifolia (soap<br />

mallee)<br />

Eucalypt is the most widespread tree<br />

component. It rarely exceeds 6 m in height.<br />

Codominants can include species of<br />

Melaleuca, Acacia and Hakea in areas such<br />

as the Big Desert in Victoria, the Ninety<br />

Mile Desert, parts of Eyre Peninsula and in<br />

the wheatbelt and southern coastal areas of<br />

Western Australia<br />

Mallee communities in Victoria and parts of<br />

South Australia have been extensively cleared,<br />

with only isolated remnants remaining in some<br />

areas. These communities are still widespread in<br />

the arid zone of South Australia and Western<br />

Australia but are subject to modification by<br />

grazing of domestic stock and from feral<br />

herbivores.<br />

Low closed forests and closed<br />

shrublands<br />

Characterised by dense foliage in the upper<br />

layers and by low stunted species usually<br />

between 5 m to 10 m in height and are<br />

sometimes referred to as ‘scrubs’<br />

Occur in a range of climatic zones, but<br />

many occur within coastal or subcoastal<br />

environments dominated by Banksia,<br />

Leptospermum and Kunzea species or<br />

Melaleuca with a mix of other species.<br />

A few occur in alpine environments in<br />

Tasmania<br />

Support a large range of species, partly as a<br />

result of their geographical range and partly<br />

from the variation in soils and site<br />

conditions<br />

They have been extensively cleared in many<br />

coastal areas for agriculture or urban<br />

development.<br />

Coastal melaleuca, Bournda <strong>National</strong> Park, New South Wales<br />

28<br />

FACTS and FIGURES

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