Vietnam, Ha Giang Prov., Quan Ba Distr, about 2 km to the NE of Quan Ba town, around point 23º05’49’’N, 105º01’00’’E at elevation about 1150 m a.s.l. Primary coniferous forest with Calocedrus rupestris, Callitropsis vietnamensis and Pseudotsuga sinensis on rocky highly eroded marble-like limestone remnant mountains. Lithophytic herb on shady wet mossy slope. Flowers white, lip with yellow spot at the center. Very common. Dominant of lithophytic herb communities.
Record creation: 2021-04-11, Аверьянов Леонид ВладимировичCitation: Specimen LE 01090831 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01090831