Vientiane Prov., Kasi Distr., Namken village, Phachao Mt., around point 19°18’45.5”N 102°22’31.4”E. Primary broad-leaved evergreen forest on very steep rocky slopes of remnant mountain composed with highly eroded solid crystalline limestone at elevations 1500-1750 m. Lithophytic fern on steep slopes and on cliffs near mountain top. Very common.
Record creation: 2026-02-28, Аверьянов Леонид ВладимировичCitation: Specimen LE 01203701 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01203701