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. No HAL 1709 31 May 2002 Collectors: L.Averyanov, P.K.Loc.
Coordinates (geographic position):22° 28′ 23″ N, 105° 19′ 47″ E ±1000 mComment:
Record creation: 2021-11-12, Leonid Averyanov, PhotoScan D2. Processing status: work_status_1Citation: Specimen LE 01123025 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01123025