Synonyms: Arundinaria niitakayamensis (homotypic); Arundinaria niitakayamensis microcarpa; Arundinaria niitakayamensis var. microcarpa; Arundinaria oiwakensis; Indocalamus niitakayamensis (homotypic); Indocalamus niitakayamensis microcarpus; Indocalamus niitakayamensis var. microcarpus; Indocalamus oiwakensis; Pleioblastus niitakayamensis; Pleioblastus oiwakensis; Pseudosasa oiwakensis; Sasa niitakayamensis (homotypic); Sasa niitakayamensis microcarpa; Sasa niitakayamensis var. microcarpa; Sinarundinaria niitakayamensis (homotypic); Yushania niitakayamensis microcarpa; Yushania niitakayamensis var. microcarpa