I don’t think so, my friend found it in the waterfallLooks like anubias variety to me.
My friend found them in a water though.No idea but it looks interesting. Put them in pots with some fertiliser and red clay and grow them on. Get some more pictures and see what they turn into.
Crypt! That’s what I thought when I first saw itCool! Judging by the roots, I'd bet it's some sort of broad-leafed cryptocoryne. Maybe pondtederifolia or a broad leafed variant of tropica? Sounds like you're experiencing typical crypt melt. Try planting it the roots in water with a good, deep substrate and see if it comes back.
Lucky you, we would all love a supply of that in a creek near byUpdate;
After reading plants book, I can confirm this is
Cryptocoryne wendtii ‘brown’