I intend to do weed characterization in my station and help my students know how to identify as well as classify weeds in the field. The only one I have is limited. Thanks for your help.
The term Weed is interesting and it is subjective to areas. Any plant growing in an unwanted place may be considered as a weed. A Weed in India may not be one in another country. Mostly invasive species are weedy to any place and in most of the floras invasive species are recorded.