Introduced weeds of the Werribee River

Here’s a list I prepared for a talk on weeds at a tree planting day by the river. These are all species I have observed along the river in Bacchus Marsh. 

Bob Reid said he might see if he can make a list of native species from the river as long as this. It’s a very disturbed environment with a lot of invasive weeds!

Not all these are particularly problematic, many just colonising disturbed ground in the absence of natives. Bold indicates those that seem to be the main problem species.

There are undoubtedly more, especially grasses, rushes/sedges and aquatics which I am not confident to positively identify.

You can use the web links at the bottom of this post to look up colour photos of them and further information. Continue reading