The leaves of northeast Forsythia suspensa are papery, wide ovate, elliptic or nearly round, apex caudate acuminate or obtuse, base is not equal width wedge-shaped to nearly round, margin is serrate, upper green is glabrous, lower light green is pilose.
The leaves of Forsythia suspensa are ovate, broad ovate or elliptic ovate, then to elliptic, the apex is acute, the base is round, then to cuneiform. Dark green on top, light yellow green on the bottom, hairless on both sides
The calyx of northeast Forsythia is about 5 mm, the lower part of the lobes is purple, oval, the Corolla is yellow, the lobes are lanceolate, and the flowering period is in May.
The calyx of Forsythia suspensa is about 6-7 mm, the color is green, the lobes are oblong or oblong, the Corolla is also yellow, the lobes are obovate oblong or oblong, and the flowering period is from March to April every year.
