Yeah, I saw your other thread, lol. I at one point was considering hitting the streets to score some vases, hehe.
I think that's pygmy chain sword. When you said it had the balls I remembered seeing something like it on liveaquaria dot com in their freshwater plants section, page 2. Every one of these I've ever had has ended up growing tall so either I've gotten the wrong plant for years from different sources or it'll grow tall at times.