A global compendium of weeds

This compendium has compiled a list of almost 21,000 entries, as well as a comprehensive index containing more than 15,000 alternate scientific names and 27,000 common names in numerous languages. Until now, the most comprehensive coverage of the world's weed flora was produced in 1979 and listed 6400 species. Predicting which plants will become weeds is difficult, with the single most important indicator of a species' weed potential being a documented weedy history, this compendium makes the task easier.