FLORA OF LAOS Apocynaceae Beaumontia murtonii Craib
Vientiane Prov., Vang Vieng Distr., Nam Pe village, about 12 km to the W of Vang Vieng town, around point 18°58′41.0”N 102°18′54.1”E.
Dry broad-leaved primary and secondary evergreen and semideciduous forest on very steep rocky slopes and on vertical cliffs of remnant highly eroded rocky limestone mountains composed by solid crystalline limestone at elevation 500-1000 m.
Large woody vine to 30 m long on rather open rocky slope at elevation 300-600 m. Flowers white, fragrant. Not common.