Of concern is the shading of smaller plants and probable decrease in plant diversity. Lauren and Emily on boardwalk at Sandy Point Salt Marsh Professors Baker and Haney were happy to be greeted by Alex Henkel at the Sandy Point Nature Center. Salt tolerance of several salt marsh plant populations. The outcome of direct competition between the two populations may be based on a moisture gradient, along which Typha might dominate in wetter, and Phragmites in dryer habitats. University of Minnesota Press.
Salt marshes along U.S. coasts fall in that category.