Abstract
Gastrodia khangii (Orchidaceae) was described in 2018 as a new and endemic holomycotrophic species from northern Vietnam. After careful examination and morphological comparisons, it has been concluded that G. khangii is matched with the description of G. bambu from Indonesia. Thus, G. khangii is proposed here as a synonym of G. bambu and at the same time as new record of G. bambu in Vietnam.