Son La province, Quynh Nhai district, Muong Giang commune, Remnant primary evergreen broad-leaved forest on limestone mountains, at top of mountain, around point 21.63116° N 103.55614° E, at elevation of 1180 m a.s.l.
Lithophytic herb about 25-30 cm tall, flower dull white, lip tinted with yellow patch inside, locally common.
March 2019, Nguyen Sinh Khang et al., NSK 1172
Coordinates (geographic position):21° 37′ 52.18″ N, 103° 33′ 22.1″ E ±1000 mRecord creation: 2020-01-05, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01066678 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01066678