Those plants are ticklish.

The only plant that is ticklish is Lagerstroemia indica.

Pruritus tree, scientific name Lagerstroemia speciosa, small deciduous tree, smooth stem, oval leaves, six petals, reddish, purple or white, flowering for more than three months, so it is also called centennial red. Lagerstroemia indica is produced in south-central China, and also distributed in India, Malaysia and Australia, which is ornamental. This kind of tree has a strange feature, that is, when people touch its smooth stem with their hands, the branches and leaves will shake immediately, as if it itches unbearable, so it is called prurigo tree.

Extended data

The reason why crape myrtle is ticklish.

The top of Lagerstroemia indica is heavier than other common trees, so the foundation is unstable. Even if you don't touch it, it's easy to shake. Therefore, when we touch its branches, the vibration caused by the friction between fingers and trees is easily transmitted to the main parts of Lagerstroemia indica through hard wood, and it will tremble when touched lightly, just like we humans are sensitive. Ziwei is one of the most amazing trees in the world.