The leaves of Jasminum nudiflorum are opposite, three compound leaves, the leaflets are ovate or oval, the edge is reversed, the midvein is slightly concave in the upper part, the lower part is convex, and the terminal leaflets are large, about 1-3cm long and 0.3-1.1cm wide. It has hair on both sides when it is young, and eyelashes only on the edge of leaves when it is old.
The leaves of Forsythia suspensa are single or three lobed to three compound leaves, which are ovate or wide ovate, wider than the former, about 2-10 cm long and 1.5-5 cm wide, with serrated edges and no hairs on both sides.
Jasminum nudiflorum is solitary in the axils of last year's branchlets. The bracts are lanceolate, ovate or oval, the calyx is slightly, the Corolla is yellow, the corolla tube lobes are 5-6, oblong or oval, and the flowering period is in June.
Forsythia flowers are usually solitary or 2 to several in axils of leaves. The Corolla is yellow, and the lobes are oval or oblong. The flowering period is from March to April.
