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Native Vegetation Group 20 - Rocky Outcrop or Escarpment Scrubs

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Rocky Outcrop or Escarpment Scrubs Native Vegetation Map

Higher resolution map of Simplified Native Vegetation Group 20 (PDF - 334 Kb) - includes major roads and towns.


Ecological Vegetation Class Descriptions

20.1 Rocky Outcrop or Escarpment Scrubs EVC 27 Blackthorn Scrub EVC 28 Rocky Outcrop Shrubland EVC 82 Riverine Escarpment Scrub EVC 133 Limestone Pomaderris Shrubland EVC 193 Rocky Outcrop Herbland EVC 310 Wet Rocky Outcrop Scrub

Bioregional Conservation Status and EVC benchmarks


20.1 Rocky Outcrop or Escarpment Scrubs

EVC 27 Blackthorn Scrub
Occurs on northerly and westerly slopes of mountains and valleys. Trees are not a prominent feature, often present only as emergents or forming a very open woodland. The small tree or large shrub layer is a dominant feature, often forming even-aged stands of uniform height. The ground layer is generally sparse and species-poor due to low site quality and the density of the overstorey. Vines can be conspicuous in the understorey.

EVC 28 Rocky Outcrop Shrubland
Occurs in areas of low site quality on exposed rocky outcrops where rock is a dominant landform feature, soils are shallow or virtually absent and effective rainfall is low. Scattered, often stunted trees are occasionally present. A diverse shrub layer characterises this EVC, including a number of rock-adapted species. The ground layer is usually sparse and species-poor except where it occurs in discrete patches and forms a mosaic with Rocky Outcrop Herbland.

EVC 82 Riverine Escarpment Scrub
Shrubland with occasional emergent eucalypts. Occurs on shallow colluvial soils along rocky cliffs and slopes associated with rivers and creeks and may extend onto alluvial terraces. Characterised by a dense medium to tall shrub layer over a ground layer which can range from low to high diversity and consist of a variety of graminoids, grasses and herbs. Ferns can often be a major component of the ground stratum.

EVC 133 Limestone Pomaderris Shrubland
Open woodland or shrubland with scattered emergent eucalypts occurring on steep, north facing aspects associated with limestone cliffs with an understorey dominated by medium shrubs. It is found at altitudes of 750 m ASL and receives a moderate rainfall of greater than 700 mm per annum.

EVC 193 Rocky Outcrop Herbland
Herbland associated with rock outcrops, generally in mosaic with Rocky Outcrop Shrubland. Subject to microclimatic extremes, being typically damp to wet in winter and dry in summer. Trees are rare although scattered spindly eucalypts can occur. Scattered shrubs may also be present. Most prominent life forms are grasses, herbs and geophytes.

EVC 310 Wet Rocky Outcrop Scrub
A treeless scrub with occasional emergent eucalypts that occurs below Montane Rocky Shrubland on rocky crests and associated slopes developed on Devonian granite.


Bioregional Conservation Status and EVC benchmarks

An EVC may have a different conservation status in each bioregion in which it is found. To look up an EVC's Bioregional Conservation Status (BCS), download the spreadsheet on the Simplified Native Vegetation Groups page.

You can also use this spreadsheet to help find the corresponding EVC benchmarks, which are listed by bioregion.


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