FLORA OF VIETNAM Apocynaceae Ixodonerium annamense
Quang Tri Prov., Da Krong Distr., Ta Rut municipality, A Pul village, around point 16°24′29”N 107°01′07”E.
Highly destroyed primary and secondary broadleaved evergreen open forest along rocky river canyon composed with shale and sandstone at elev. about 300 m a.s.l.
Woody vine to 15 m long on rather open river slope. Flower tube white, tepals pink-purple. Rare.