It reminds me a black locus but yours has more voluminous seedpods.

Omar

That's one of the things that kept coming up. Another was pagoda tree which looks kind of similar but there are a lot more leaves on this and if the flowers are like what she said it doesn't fit.

Looks like bladderpod (Sesbania vesicaria)and they are an annual. I've grown them before and they have very small reddish flowers. They grow wild out along the roads past Bastrop on highway 71.

Small Pride of Barbados type flowers does seem to fit Sesbania better than locust, at least on colors. Surprised to see they can reach small tree size. Not sure they normally get much beyond 3 to 5 feet over the north Texas growing season.

Interesting! One learns about all kinds of plants on this forum. I've never seen it.