]> A barcode-02182239 Laos Khammouan Nakai Oudom Souk. Nakai district, nearby village Oudom Souk, behind the Nakai NBCA station. Alstonia rostrata C. E. C. Fischer C. E. C. Fischer 2020-02-18 16:09:10 B. Svengsuksa, V. Lamxay, & K. Nanthavong