You should really stop with these plant IDs until you learn a bit more. You aren't helping.Hello Venus...
Your plant looks very much like Hygrophila corymbosa "Stricta" or Giant Hygro. The hydroponics store where I get my liquid ferts grows this plant emersed. The red stems are very unique.
Huh...I never noticed that before lol. Well then again my L. glandulosa came submersed so I've never seen it emersed.jmobray is correct. It's Ludwigia glandulosa (in the middle of converting). The easiest way to tell (among many other things) between that and Alternanthera reineckii is that L. glandulosa has alternate leaves (one leaf per node) and A. reineckii has opposite leaves (one on each side of the stem at the same level).