Vientiane prov., Vang Vieng distr., Oa Hom village, around point 19°05'57.0''N 102°23'19.9''E. Secondary broad-leaved evergreen and semideciduous dry forest with on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 650-750 m a.s.l. Epiphyte on mossy trees on rocky mountain top. Not rare.
Record creation: 2021-05-12, Аверьянов Леонид ВладимировичCitation: Specimen LE 01122508 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01122508