Vientiane prov., Kasi distr., Si Sang Vone village, around point 19°06'10.9''N 102°10'46.1''E. Secondary broad-leaved evergreen dry forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 600-700 m a.s.l. Climbing shrub in rather open place on steep rocky wet slope. Flowers white. Very common. Co-dominant of secondary scrub in wet places.
Record creation: 2023-10-06, Galina Savich, PhotoScan D2.Citation: Specimen LE 01233981 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01233981