Can someone help identify?

[Meyer Jordan]

There are several varieties of Sesbania, 53 named varieties to date.

 

[tbendl]

It doesn't look familiar. Where in MS are you? I'm on the coast .

 

[Jetta]

Tupelo area

 

[Jetta]

You might be right, all images for Sesbania punicea seem to have larger flowers than your plant. It does seem to be from the fabaceae family. Is the stem woody?

Yes the stem feels woody

 

[Jetta]

New development on odd plant, it has pea like pods