Herbs that Tonify Yin

Besides tonifying yin, what is another important action of Mo Han lian (ecliptae herba)?

Mo Han Lian is used for patterns of yin deficiency with bleeding due to heat in the blood.

Source: Bensky, D. (2004). Chinese Herbal Medicine: Materia Medica. Seattle, WA: Eastland Press. pp. 838. [Q1143]