I agree with Native in that the first plant looks like some sort of rush. It should it will be hollow if you cut the stems with a knife or the like. I see it in wet areas here. Along ponds, creeks and even just natural weeps and springs as well. The second I also agree looks like a sedge of some sort. They will stay fairly green (may turn yellow) here all winter and I find them in all sorts of areas. We called them "woods sedge" here because we tend to find them more so in the woods. I doubt that is there true name, but I am pretty sure its a relative of what I see here. Grows as a bunch like you show and the leaves will have a waxy type of feel......similar to yellow nutsedge in feel.