Chang E is the moon Goddess. The gnarled pine tree and the blossoming plum tree are symbols of the cycle of the waxing and waning moon and life. The pine tree is a symbol of longevity and steadfastness epitomizing self-discipline and long life. The plum represents spring, innocence, sensuality and good luck.
Source: Fan painting on silk, 1350/1400, late Yuan or early Ming, Art Institute of Chicago