Found this little colony (this is less than an eighth of it) growing in a garden center pond section interspersed among the normal pond plants. The owner said he didn't know what it was and would be happy if I took it off of his hands! I would go back and get the rest but I just don't have the space for it. My only problem is I don't know what species it is. There were no flowers but it almost looks like there are two species in there but I have no idea where to start on trying to ID them myself. Any ideas?