I will let those who know this stuff better than me figure this out -- Is Phalaris arundinacea and Phalaroides arundinacea the same plant? The first has much more info and photos than the second.
I want to live in a world where the chicken can cross the road without its motives being questioned.
Yes, they are the same plant. I've deleted the Phalaroides arundinacea entry and added the name as a synonym to the Phalaris arundinacea entry. Thanks, Deb.