Top is aluminum plant. Its not an underwater plant middle looks like a crypt and bottom seems to be wisteria. Mine is the same way
If it is wisteria, it's grown under low light and if you put it in higher light will probably grow more typical. I still think it looks funny for wisteria though.
Aluminium is sold at every LFS in my city, its a common one unfortunately. But some people like to use it and replace whenever it starts to look bad. You could take it out and grow it as a house plant instead?