Legume identification

Got this unknown tree for free at a nursery this past weekend, can anyone identify it?

Looks to me a Golden Chain Tree (not Golden Rain), Laburnum. There's a couple species, I've normally seen the hybrid cultivar 'Vossi' available commercially.

Decent ornamental, pretty when in bloom (yellow flowers in May) but not a whole lot beyond that besides being a legume.

Yep, that's it some kind of labornum, and it appears to be poisonous, too bad, ill end up throwing it off in some corner away from any foraging chickens. Thanks for the help!