Do friends know what this flower is?

It's definitely hibiscus. You can find similar pictures in the picture column of Baidu. Flowers and leaves are the same, but this is only one of them. If you don't distinguish it carefully, it looks more like hibiscus or hollyhock.

Lagerstroemia indica, alias Jingershu, Hundred Days Red, Full House Red and Pruritus Tree. Lagerstroemia indica has a graceful posture and a smooth and clean trunk. There are many leaves in your painting. Of course not crape myrtle. Ziwei is also very common. It is the city flower of Jincheng City, Shanxi Province. Generally, the flowers are small and clustered.

This is the result of my appraisal for more than an hour. What questions can I ask?