Giant knotweed Fallopia sachalinensis
![Giant knotweed Fallopia sachalinensisl botanical illustration by Lizzie harper](https://lizzieharper.co.uk/wp-content/uploads/2019/04/Giant-knotweed-Fallopia-sachalinensisl-439x525.jpg)
Giant knotweed Fallopia sachalinensis showing numerous drooping flowers, large leaves, stem section and detail of the orange underground rhizome
Giant knotweed Fallopia sachalinensis showing numerous drooping flowers, large leaves, stem section and detail of the orange underground rhizome