Synonyms
Rhododendron siamense Diels
Rhododendron stenaulum Balf.f. & W.W.Sm.
Rhododendron pectinatum Hutch.
Rhododendron leucobotrys Ridl.
Azalea moulmainensis (Hook.) Kuntze
Rhododendron nematocalyx Balf.f. & W.W.Sm.
Rhododendron oxyphyllum Franch.