A recent article reviews trees and shrubs around the world that are considered invasive. The article summarizes an exhaustive review of regional and national databases and literature. Some of the important woody invasives are the twenty-one woody plant species featured on the widely cited list of “100 of the World’s Worst Invaders” (Lowe et al., 2000).The article concludes that only between 0.5% and 0.7% of the world’s tree and shrub species are currently invasive outside their natural range, but the importance of woody plant invasions is rapidly increasing.
The article is free. The authors are David M. Richardson and Marcel Rejma´nek. Here is the link: Trees and shrubs as invasive alien species – a global review.