1、 Different leaves

The leaves of firecracker flower are very similar to the latter, but its leaf edge is very smooth, with a length of about 5-10 cm. There is no hair on the surface, and there are cave glands on the back of the leaves

The leaf edge of Lingxiao flower has serrations, which can be felt by hand. It is about 3-6cm long and 1.5-3cm wide, with 6-7 opposite lateral veins

2、 Different flowers

The petals of the firecracker flower are relatively slender, and the surrounding petals will bend back, smaller, and densely gather together, like a string of firecrackers

The petals of Lingxiao flower are flat and round, like a trumpet, and only a few of them gather and grow together. If you observe carefully, you will find that the color on the surface will be darker than that on the back

3、 Different varieties

The former is a plant belonging to the family Bignoniaceae and the genus Calamus. It is a kind of evergreen shrub. Its stem is very strong, with an edge on it, and its small branches have longitudinal texture

The latter is a deciduous climbing shrub belonging to Bignoniaceae and Lingxiao. Its stem is woody, and its epidermis falls off and becomes withered brown. The air roots on the plant can be adsorbed on the wall and climb up and grow along the wall