Description from
Flora of China
Plants glabrous or subglabrous. Leaves thin, papery, base shallowly cordate, glabrous or sparsely strigose, margin 9-15-crenate. Bracts ovate-orbicular. Lateral lobes of lower lip of corolla ovate, apex rounded.
* Forest margins, slopes; 900-1700 m. Guizhou, Sichuan.