Reed Canary grass, (phalaris arundinacea) as far as I can tell, is related to Harding grass (phalaris aquatica) that used to be a favorite here because it would survive boggy conditions but also survived drought. Its roots break up our clay soil to a greater depth than the other grasses. We still have it in our fields. It is coarser than Timothy or Orchard Grass and not as palatable, but Timothy dies out here when we have drought conditions.
I just put a bunch of heifers on a piece using electric fence for strip grazing. They preferred the Harding Grass to all the annuals, annual rye, wild oats, and whatnot. But Harding Grass is classified as an invasive species here and you can't get the seed anymore. My neighbor had a hatred for it, and worked to eradicate it. His lessee only put cows on it after it had gotten coarse and his cows wouldn't eat it. (Hmm. My cows will eat it) What replaced it? Medusa Head, which doesn't grow in my field, and which he didn't mind. At least the Harding Grass chokes out the star thistle and medusa head. I don't think he noticed that the medusa head is just lying down and not actually being eaten. And don't get me started on star thistle.