spiderwort
commelina communis. the other common name is day flower. As its common name says, the flower opens in the morning, and closes when the sun begins shining.
Japanese name is morning dew flower.
Language of the flower Esteem not love
This is commonly seen in the grassy field.
Clear blue flower is so beautiful in grassy place.
I hear that it had been used as dyestuff from ancient times.
Recently there are flowers that don't close in daytime.
The variety might be gradually changing.
Thanks for viewing my photo.