Brigalow Clay Plain Woodlands

Vegetation class map


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Key:
<1%
1-10%
10-50%
>50%
Estimated percentage landcover for vegetation class

Structure

Woodland up to 25 m tall with scattered shrub and a semi-continuous groundcover of grasses or forbs

Trees

Acacia harpophylla, Casuarina cristata, Eucalyptus populnea ssp. bimbil

Shrubs and vines

Geijera parviflora, Apophyllum anomalum, Dodonaea viscosa ssp. spatulata, Pimelea microcephala, Rhagodia spinescens

Forbs, graminoids and pteridophytes

Sclerolaena diacantha, S. birchii, Solanum parvifolium, Vittadinia cuneata, Bracteantha bracteata, Calandrinia eremaea, Stellaria angustifolia, Einadia nutans, Tetragonia tetragonioides, Brunoniella australis, Zygophyllum glaucum, Austrostipa scabra ssp. scabra, Notodanthonia bipartita, Enteropogon acicularis, Paspalidium caespitosum, Chloris truncata, Leptochloa divaricatissima

Habitat

Flats, rolling downs and upper outwash areas with deep clay soils

Distribution

Upper floodplains north from Narrabri, and north from Bourke, extending into central Qld.

Notes

These woodlands define the 'brigalow belt', stretching from central Qld and reaching its southern limit in north-west NSW. Composition varies with soil texture and rainfall, with western occurrences north of Bourke having more arid floristic elemants than those north of Narrabri. Related vegetation includes Western peneplain woodlands and Northwest plains semi-arid shrublands. Severely depleted and degraded by pastoral activities. Remnant stands are small and sometimes affected by weeds or soil degradation.

Sources

Sivertsen & Metcalfe (1995 & unpubl.); White (2000)

See all threatened species associated with this vegetation class

See a list of species, populations and ecological communities associated with the Brigalow Clay Plain Woodlands vegetation class.