Any idea what I've got?

[patjava30]

Picked these out of a lake in upstate ny. Not sure what they are, shallow warm water plants.

 

[Samaka]

The first one looks like small offshoots from an Italian Vallisneria. In low light they offshoot in the gravel, but don't get tall. The second one looks like Rotala rotundifolia green. That one didn't do too well in my low tech tank and lasted many months though, hope this helps.