In midsummer, a flower blooms in the tree. When the wind blows, green flowers float all over the floor. What kind of tree is that? What's the name of that flower?

Cinnamomum camphora is a common greening tree species in southern China. The whole plant of Cinnamomum camphora smells like camphor Its bark is green when it is young and turns grayish brown when it is old. Moreover, the longitudinal grooves are deeply divided, and the leaves are ovoid or ovoid. Before the leaves fall, the green leaves turn red, and in spring, there is a new green, and small yellow-green flowers are mixed among the new green leaves. If you don't look carefully, it's really difficult to distinguish flowers from leaves. ?

(If it is in the north, it may be acacia. The greening trees in the north are mostly acacia and poplar, and the flowers of acacia are mostly white, white, green and lavender. Poplar flowers are crimson, and as a result, white flocs like catkins will float down. There are occasional poplars in the south, but most of them are boxwood. )