Ever since you found out that there were both native and introduced types of Common Reed (Phragmites australis), you have been dying to know if that patch in your backyard is a foreign invader, haven't you? Well, now here's your chance: The Phragmites Diagnostic Service at Cornell University is offering to test your sample for free! If you have several samples that you want to have tested, you have to pre-register, but it's still free! Or you could do what I'm going to try to do, which is identify native stands of Phrag using this handy guide.
Thanks to a member of the Yahoo! group ma-eppc for posting information about this project.