Herbs that Transform Phlegm and Stop Coughing

Which of the following is a Lung guiding herb, meaning it can direct the actions of other herbs to the Lung and the upper body?

Jie Geng is balloon flower root. You can think of a balloon floating upwards and lifting other herbs to the upper body.

Source: Bensky, D. (2004). Chinese Herbal Medicine: Materia Medica. Seattle, WA: Eastland Press. pp. 430 [Q851]