How do invasive weeds affect riparian areas?

Invasive weeds “threaten and reduce native vegetation along rivers and streams” which decreases the ability of riparian areas to store water and prevent or reduce flooding. For example, the roots of perennial pepperweed (tall whitetop), while long are brittle and don’t hold the soil as well as the native plants it displaces. For more information, read “The Invasive Weeds Make Flooding Worse” by JoAnne Skelly, University of Nevada Cooperative Extension‘s Carson City/Storey County Extension Educator.