North-west Floodplain Woodlands

Vegetation class map


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

Structure

Eucalypt woodland with an open but variable shrub stratum and semi-continuous groundcover of perenial and ephemeral grasses and forbs

Trees

Eucalyptus coolabah ssp. coolabah, E. largiflorens, E. camaldulensis restricted to drainage channels, Casuarina pauper, C. cristata with Eucalyptus ochrophloia on the Paroo floodplain

Shrubs and vines

Acacia victoriae, A. stenophylla, A. farnesiana, Atalaya hemiglauca, Eremophila bignoniiflora, Alectryon oleifolius, Atriplex nummularia, A. leptocarpa, Chenopodium nitrariaceum, Rhagodia spinescens, Enchylaena tomentosa, Muehlenbeckia florulenta, Dodonaea viscosa ssp. angustissima

Forbs, graminoids and pteridophytes

Astrebla lappacea, Chloris truncata, Eragrostis setifolia, E. parviflora, Iseilema membranaceum, Sporobolus caroli, Agrostis avenacea, Paspalidium jubiflorum, P. aversum, P. distans, Enteropogon acicularis, Cyperus concinnus, Eleocharis pallens, E. plana, Juncus aridicola, Babbagia acroptera, Boerhavia diffusa, Chamaesyce drummondii, Solanum esuriale, Tribulus terrestris, Calotis hispidula, Scleroblitum atriplicinum, Sclerolaena muricata, S. birchii, Lepidium hyssopifolium, Vittadinia triloba, Asperula gemella, Eryngium plantagineum, Centipeda minima, Einadia nutans, Trigonella suavissima, Wahlenbergia stricta, Euchiton sphaericum, Pseudognaphalium luteoalbum, Haloragis glauca, Ixiolaena brevicompta, Mimulus gracilis, Senecio quadridentatus, Goodenia fascicularis, Oxalis chnoodes, Plantago cunninghamii

Habitat

Heavy texture soils on active channel floodplains of the upper Darling and tributaries receiving less than 500 mm annual rainfall

Distribution

Extensive on the upper Darling, Paroo, Warego, Culgoa, Barwon, Macquarie and Namoi floodplains, east to Moree and extending into south-west Qld.

Notes

A widespread group of assemblages whose composition varies with flood frequency. Shares floristic affinities with Inland floodplain woodlands to the south and Inland riverine forests. Grades locally into Inland floodplain shrublands and Semi-arid floodplain grasslands with decreasing flood frequency on the floodplain. Grades into Western peneplain woodland on the elevated peneplain.

Sources

Beadle (1948); Dick (1990); Pickard & Norris (1994); Sivertsen & Metcalfe (unpubl., series 2 & 3)

See all threatened species associated with this vegetation class

See a list of species, populations and ecological communities associated with the North-west Floodplain Woodlands vegetation class.