You can see a bigger Cryptocoryne Leaf underwater in my smaller Fish Tank. The Cryptocoryne is also called Water Trumpet. In the Background you can see a lot of Vallisneria Plants. But you can say the Photo is a close-up shot of a Cryptocoryne Leaf.

As there are differend kind of Cryptocoryne and Vallisneria Plants on the Marked, I can´t tell you the exact Name of mine. I think there are a lot of differend Vallisneria and Cryptocoryne out there.