The U.S. Army Corps of Engineers issued the 2014 annual update to the National Wetland Plant List (NWPL) in April 2014. The NWPL is a list of wetland plants and their assigned indicator statuses. An indicator status reflects the likelihood that a particular plant occurs in a wetland or upland. An interactive database is available on the website (http://rsgisias.crrel.usace.army.mil/NWPL
/) with lots of new features for searches and regional filters.