3.5. Introduced Flora

Plant species have been introduced to benefit agriculture or agroforestry, to avert soil erosion and provide windbreaks, and for a range of commercial and economic purposes. Where these species escape from cultivation, they can quickly become problematic. Many noxious weed species occur in or are gazetted for the Mid Murrumbidgee. Some of the more notable are listed below:
• Chilean needle grass (Nassella neesiana)
• Coolatai grass (Hyparrhenia hirta)
• Serrated tussock (Nassella trichotoma)
• Spiny burr-grasses (Cenchrus spp.)
• African boxthorn (Lycium ferocissimum)
• Bathurst/Noogoora burr (Xanthium spp.)
• Horehound (Marrubium vulgare)
• Paterson’s curse (Echium plantagineum)
• St. John’s wort (Hypericum perforatum)
• Thistles (Onopordium spp. and Centaurea spp.)
Large infestations of several of these species occur within the region.

References and Resources
• Weeds Australia. Undated. Weed Identification (NSW South Western Slopes)