Northern Vietnam, Lao Cai Prov., Van Ban Distr., Khanh Yen Ha municipality, elevation from Na Nheo village to the S from 680 to 880 m a.s.l. (around point 21ø59'24''N, 104ø16'23''E). Secondary evergreen broad-leaved wet submontane forest on very steep granite and quartzite slopes of river canyon. Terrestrial herb up to 1 m hg on wet steep river slope. Flowers white, tube at the base purple-violet. Common.
Record creation: 2026-10-13, Аверьянов Леонид ВладимировичCitation: Specimen LE 01360641 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01360641