If it is Potamogeton pusillus ( or any Potamogeton ?) I would say it is rooted. At least if this link is accurate: http://www.ecy.wa.gov/programs/wq/plants/plantid2/descriptions/potpus.html

Mine does not pose that much trouble for me, actually been almost un-noticeable. Grows near the edge in some areas, probably 6' of water or less. Whatever you have looks very extensive. Where mine grows, it looks like yours with density, just that I don't get it everywhere.

Also if it is Potamogeton foliosus, then it is rooted too.
http://www.illinoiswildflowers.info/wetland/plants/leafy_pondweed.html



Last edited by fish n chips; 05/20/16 09:48 PM.