1 - A Potamogeton, probably P. nodosus or something close to it.
2 - I'm no good with grasses.
3 - Hydrocotyle. I'm not good at differentiating between the species. Probably H. verticillata or another similar species.
4 - Myriophyllum sp.
5 - Hmm. Another Potamogeton?
6 - Good ol' Ludwigia repens.
Thanks for the reply! I cant believe I found repens on the frio. I have been wanting it for a while now but havent been able to get any. Turns out its just a few hours away and free! All the plants seem to be doing well. Next weekend im off the the Guadalupe river, and hopefully I'll be as lucky there!
I could be wrong, and most likely, I am. However, I think the 4th plant could be roots from some other plants. I've seen very similar, red pink roots that look like that in a local pond.
I dont think so. I found them growing in the river in fast moving water. They had roots buried in gravel and the bushy red part sways in the current. There was lots of it growing in the river so im pretty sure it is some sort of Myriophyllum sp.