[Monster Fish]

I've found cabomba on Long Island before. Look hard enough and you can find native Ludwigia, Persicaria, and other weeds.

Here's some info to help you out. http://www.cayugalake.org/files/all/weed_id_guide.pdf

USDA.gov has a nifty plant finder.
https://plants.usda.gov/adv_search.html