Identification of Oberonia (Orchidaceae) plants on Kozu Island, Japan.
To clarify whether Oberonia plants from the Izu Islands are O. japonica or O. makinoi, molecular and morphological analyses of Oberonia plants from Kozu Island were performed. Data derived from the nuclear internal transcribed spacer (ITS) region,  plastid matK with trnK region, and single-nucleotide polymorphisms data from MIG-seq showed that Oberonia plants from Kozu Island belong to O. japonica.