Northern Vietnam, Tuyen Quang Prov., Na Hang Distr., Thuong Lam Municipality, Na Lau village, in the vicinity of point 22ø28'23''N, 105ø19'47''E. Primary evergreen seasonal broad-leaved forest on highly eroded remnant ridge composed with soft stratified limestone consolidated with numerous quartzite dikes at elev. 450-500 m a.s.l. Mycotrophic achlorophyllous blue herb on shady rocky slope. Flowers light blue to white, stem blue to blue-violet. Occasional.
Record creation: 2023-11-30, Аверьянов Леонид Владимирович. Processing status: work_status_1Citation: Specimen LE 01124530 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01124530