To help with the identification of Japanese knotweed, New Zealand pigmyweed & the Curly-leafed waterweed, CAISIE have created short clips on the main identifying features of these species. Most people will have encountered Japanese knotweed on roadsides or river banks. New Zealand pigmyweed is an aquatic invasive plant, but can be seen growing in damp marshy area’s. Curly-leafed waterweed has two other closely related plant species, learn how to distinguish between each species.
Source: CAISIE – Identifying Features of Three Highly Invasive Plant Species
