Can someone help identify?

[Jetta]

Plant given to me I believe it's native to Mississippi. It is a marginal I believe I have it inside the pond on a ledge.

 

[Meyer Jordan]

Looks similar to the 'Sensitive Plant', but i will bet that it isn't. There is a native highly invasive weed (Phyllanthus sp.) that is endemic to the Southeast U.S..that is quite similar. I wish that I had a nickel for everyone that I have pulled up.

 

[Jetta]

My son thought that too! Sadly for him it's not, the leaves are non reactive lol

 

[DutchMuch]

Flower looks similar to that of this

 

[sissy]

I got some of that weed in my mulch from the garden center and it has been a nightmare since trying to get rid of it .I forget what the garden center here told me it was but it grows all over the side of the roads and sprouts off runners also .

 

[qclabrat]

Plant given to me I believe it's native to Mississippi. It is a marginal I believe I have it inside the pond on a ledge.

is that red flower from the plant? I was for sure it would have had purple blue flowers with my guess

 

[DutchMuch]

is that red flower from the plant?

seems so.

 

[Jetta]

Yes it's two shades of red and maybe the size of a pinky nail

 

[Jetta]

Here is another photo of it. It hasn't sprouted anywhere else, I like the plant, especially now that it has shown some improvement from its original state of distress.

 

[DutchMuch]

Really am stumped here!

 

[brokensword]

It sort of reminds me of a black locust seedling. Ah, if so, it's a tree...although, black locust have white racemes, not red flowers.

 

[IPA]

As best as I can tell, Sesbania punicea. Rattlebox. it is toxic to livestock according to University of Florida center for aquatic and invasive plants where it is considered invasive.

https://plants.ifas.ufl.edu/plant-directory/sesbania-punicea/

USDA Natural Resource Conservation Service site:
https://plants.usda.gov/core/profile?symbol=SEPU7

 

[Meyer Jordan]

It appears that you have ID'd this plant. If it is, I don't think that it would make a great pond plant as Sesbania apparently gets quite large and woody.

 

[Jetta]

I don't think those are the ones either, those flowers are as large as his hand!

 

[IPA]

I don't think those are the ones either, those flowers are as large as his hand!

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?