Tree identification - roadside in northern New Jersey in August

Tree one is possibly Gleditsia triacanthos, var. inermis OR Gymnocladus dioecus.

Dave

Plant 2 is winged sumac (Rhus copallina) I know what Plant one is, but am drawing a blank on the name. Arrg. It is not Gleditsia, Sophora, Robinia, Gymnocladus...

I am concluding that plant 1 is Sophora Japonica, also known as Chinese Scholar tree or Japanese Pagoda tree. I found that the petals of the flower are not symetrical; about four of them surround the pistil and stamens but one of them is spread (not curled up),folded back and the tip goes into the sepals. Beautiful flowers in July-August.

Plant 2 is Rhus Copallina also known as winged sumac (supposedly there is a wing between leaves), shining sumac or dwarf sumac. Thanks Mike.