葉よう序じょようじょMeanings1nounphyllotaxis; phyllotaxybotanyBotanical term for the arrangement of leaves on a stem. Used in scientific contexts.植しょく物ぶつの葉よう序じょには互ご生せい、対たい生せい、輪りん生せいなどがある。Phyllotaxis in plants includes alternate, opposite, and whorled arrangements.