The mimosa on the campus protection dam has blossomed, and I have not come to see it for more than two months, I like to play with mimosa the most, as soon as my hand touches the leaf, it shrinks up and does not open, I did not understand that mimosa is closed at night

The mimosa on the campus protection dam has flowered, more than two months have not come to see, I like to play with mimosa the most, as soon as the hand touches the leaf it shrinks up and does not open, before I did not understand that mimosa is closed at night, and when I came to see them at night, I could not find a single tree. It is ready for another gardener to weed, because the grass is old and will be bulldozed here, but the mimosa is deeply rooted, and before long they will grow new branches and leaves again.