1、 Blade difference

The leaves of pods are papery, oval or rhombohedral obovate, about 4-8 cm long, sharp at the top, wedge-shaped to wide wedge-shaped at the base, with triangular serrations

Cloves are leathery or thick papery, oval to kidney shaped, wider than the former, about 2-14 cm long, with short convex tip at the initial stage of the tip and then long acuminate, heart-shaped or wide wedge-shaped at the base, and the surface is smooth without sawtooth

2、 The difference between flowers

Vanilla is a panicle and grows on the top of the short branches that will give birth to young leaves. The flowers open first than the leaves. The corolla bud is pink and will turn white after opening. The anther is yellowish white and has five petals

Lilac is also a panicle, with purple corolla, yellow anther and four petals