Night of the top Flowers - acrylic on paper, Bai Xuhau

This is a Chinese painting. It is by Bai Xuhau (b. 1949.)I don't know the artist and am only guessing on a date in the 1980's. The frame measures 20 3/8 x 25 top 1/8, the visible image 15 x 19 3/4.