The Wirribi Yaluk/Werribee River travels through diverse landscapes and plant communities throughout the catchment. In the upper section of the river, eucalyptus forests shade and cool the leafy depths of the Wombat State Forest. Moving downstream through farmland, regeneration plantings are restoring vegetation to once cleared hills, and land managers are working to remove the exotic plant species that can choke our waterways. Many important plants and places remain, and these need protection to continue to thrive. *All plants provide food, shelter and habitat for insects, reptiles, animals and birds.*
There are three bioregions in the Werribee River catchment: The Victorian Volcanic Plains, the Central Victorian Uplands and the Otway Plain Bioregion. In the catchment, only approximately a third of the native vegetation remains. The region has been extensively cleared due to farming, inappropriate land management practices, and urban development.
The Werribee Blue-Box tree is found only along Wirribi Yaluk and its tributaries. This endangered species was officially recognised in 2011, and revegetation programs by Werribee Zoo and Wyndham City Council are expanding its range, although a few mature specimens of this magnificent tree can be found in Werribee township.