Potential Distribution of Spear thistle (Cirsium vulgare) in Victoria (Nox)

This map of the potential distribution of Spear Thistle has been produced from CLIMATE® modelling overlayed with:

Overlays used.

Land use:
Pasture irrigated and dryland
Horticulture

Broad vegetation types:
Coastal scrubs and grassland; dry foothill forest; moist foothill forest; montane dry woodland; montane moist woodland; sub-alpine woodland; grassland; plains grassy woodland; coastal grassy woodland; herb-rich woodland; sub-alpine grassy woodland; montane grassy woodland; riverine grassy woodland; riparian forest; rainshadow woodland; mallee; mallee-heath; boinka-raak; mallee woodland; heathy woodland; wimmera mallee/woodland; lowland forest; heath; swamp scrub; box-ironbark forest; inland slopes and sedge-rich woodland.

Colours indicate possibility of Cirsium vulgare infesting these areas.
Red = Very High
Orange = High
Light Green = Medium
Dark Green = Likely

Map: Potential distribution Spear Thistle

Potential Distribution of Spear thistle

In the non-coloured areas the plant is unlikely to establish as the climate, soil or landuse is not presently suitable.

Further information on mapping potential distribution of weeds

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