Name: josephine Arlington, Texas (Zone 8a) Hi Everybody!! Let us talk native.
Hello Donald, Yes that is Sesbania vesicaria indeed, Glottidium is a synonym, see link; http://www.wildflower.org/plan...
I like the plant also, but it would be good to keep it away from live stock.
Wildflowers are the Smiles of Nature.
Gardening with Texas Native Plants and Wildflowers.