davemonkey

I was driving through Chambers County today and stopped by a road ditch to see what was in it. I was pleasantly surprised with a few different plants. I was able to ID some Bacopa monneiri, seashore paspalum (Paspalum vaginatum) and some different hairgrasses. But I don't know three of them.

This first one looks like a ludwigia, but is very small. I know that L.peploides is common around here, maybe these are babies? Leaves are opposite. It was growing in a thick clump just below the water surface.



This next one looks VERY similar, but it a bit larger-leaved, and leaves are alternate. It was growing in small clusters or 2-3 stems, sometimes only 1.



Here is a comparison of the two. Notice the size difference.

Can anyone make a good guess or positive ID?
-Dave