Abstract: The essential oils of 10 kinds of bamboo leaves, i.e., P. amarus (Keng) Keng f., P. amarus (Keng) Keng f. var. hangzhouensis S. L. Chen et S. Y. Chen P. simonii (Carr.) Nakai, P. maculatus (McClure) C. D. Chu et C. S. Chao, P. yixingensis S. L. Chen et S. Y. Chen, P. altiligulatus S. L. Chen et S.Y. Chen, P. amarus (Keng) Keng f. var. pendulifolius S. Y. P. juxianensis Wen, C. Y. Yao et S. Y. Chen, P. maculosoides Wen, and Chen, P. solidus S. Y. Chen, in Pleioblastus Nakai, were extracted by steam distillation method. The chemical compositions of essential oils were analyzed and compared by GC/MS. 195 volatile components were identified. Among them, aldehydes had the highest relative contents, followed by ketones, alcohols, esters and phenols. There were 17 kinds of common compounds in 10 bamboo essential oils, and their relative contents were relatively high. To some extent, 17 common compounds might represent the main volatile components of the bamboo leaves of Pleioblastus Nakai.

Key words: Pleioblastus Nakai, bamboo leaves, essential oils, aldehyde compounds, ketone compounds