Why do itchy trees move when touched?

When touching the itch tree, it will move because its wood is hard and conductive. If you gently touch its branch, it will spread to the branch quickly and the branch will vibrate.

"Pruritus tree" generally refers to "Lagerstroemia indica".

Flowers red, dark pink, light red or purple, white, 3-4 cm in diameter, often forming a terminal panicle of 7-20 cm; Pedicel 3- 15 mm long, axis and pedicel pilose; Calyx is 7- 10 mm long.

Lagerstroemia indica is regarded as one of the tree species to beautify the city by many cities. A large part of the reason is that Lagerstroemia indica is one of the few flowers with long flowering period and high value. After many pruning, Lagerstroemia indica can blossom many times a year, lasting 100~ 120 days.