Comments on proposed changes to the US Army Corps of Engineers(USCOE) published in the Federal Register are due no later than the 13th of November.
Overall, 311 changes to the plant list have been proposed with an almost even (51% wetter /49% drier)0 split between plants receiving a wetter rating and plants receiving a drier rating. These ratings are very important as a plants presence combined with soil characteristics and water regimes paints a picture if an area is determined to be an upland or wetland.
The comment period ends on November 13, 2015 and the Federal Register is available here to read. Beyond the list is an article by the National Wetlands Newsletter on how the list and ranking system has changed and matured over the years.