The leaves of Robinia pseudoacacia are alternate. There are 7-19 of them can form pinnate compound leaves, which are oval to oval oblong, about 3-6cm long, dark green and shiny. The leaves of Robinia pseudoacacia are usually opposite, oval, oval or long oval, smaller than the former, with round or concave apex, small tip, round to wide wedge at the base, green above and gray green below.
Sophora fragrans is a raceme, drooping, red color, can bloom 200-500 flowers at the same time, with a very strong floral fragrance. And Robinia for spike, bracts fall early, color is white, Robinia flowers can be eaten
