Ha Giang prov., Quan Ba Ddistr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23º07ʹ54.9ʺN 104º59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Lycophyte and occasionally epiphyte. Flowers pale yellow greenish. Very rare. 31 November 2022, Nguyen Sinh Khang, AL 1621.
Record creation: 2023-04-03, Galina Savich, PhotoScan D2.. Processing status: work_status_1Citation: Specimen LE 01170358 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01170358