Present distribution of Nassella trichotoma in Victoria

Serrated Tussock - Nassella trichotoma (Nees) Hack. Ex Arech. (Synonym; Stipa trichotoma)

Status:

Regionally Prohibited Weed for the Mallee, North Central, Goulbourn-Broken, North East, East Gippsland, Wimmera and Glenelg Hopkins Catchments.

Schedule 2- Regionally Controlled weed in the Corangamite, Port Phillip and Westernport and West Gippsland Catchments.

Habitat:

• Subhumid, subtropical and warm-temperate regions, occurring as a weed in native and introduced pastures and lightly timbered regions.
• It is not restricted to any soil type or rainfall pattern and is relatively resistant to drought.
• In South America it is a minor weed invading cleared woodland, ploughed fields and neglected areas.(Parsons and Cuthbertson, 1992).
• Serrated tussock invades dry coastal vegetation, lowland grassland & grassy woodlands, dry sclerophyll forests & woodlands and rock outcrop vegetation (Carr et al 1992).

PRESENT DISTRIBUTION OF SERRATED TUSSOCK IN VICTORIA:

Potential distribution of Nassella trichotoma in Victoria (see map below).

Potential distribution produced from CLIMATE® modeling and overlayed on suitable overlays with CMA boundaries. Overlays used.

Land uses:
Pasture irrigated and dryland

Broad vegetation types:

• Coastal scrubs and grasslands
• Dry foothill forests
• Grasslands; plains grassy woodlands; valley grassy forests; coastal grassy woodlands; montane grass
• Woodlands; riverine grassy woodlands; rainshadow woodlands
• Box ironbark forests.

Colours indicate possibility of Nassella trichotoma infesting these areas.

Red= Very                                                                                              Orange = High
Yellow = Medium                                                                                            Green = Likely
In the non-coloured areas the plant is unlikely to establish as
the climate, soil or landuse is not presently suitable.

POTENTIAL DISTRIBUTION OF SERRATED TUSSOCK IN VICTORIA: