“…Previous studies on the chemistry and biological activities of Perilla frutescens and its varieties, including plant parts described as leaves (Kaufmann et al, ; Meng, Lozano, Gaydou, & Li, ; Natsume, Muto, Fukuda, Tokunaga, & Osakabe, ; Zhu et al, ), seeds (Kim, Park, Na, Seong, & Yu, ; Lee et al, ; Peng, Ye, & Kong, ), and fruits (Gu, Wu, & Wang, ; Hong, Park, & Kim, ; Zhao, Qin, Wang, Chu, & Guo, ), have been reported. However, potential confusion over the plant part investigated may occur, as the nutlets (single‐seeded fruits) may be mistaken for seeds, thus raising the possibility that knowledge of the chemistry and biological activities of this species may not always be associated with the correct plant part, with implications for quality, safety, and efficacy, when plant material is traded and used for medicinal and food applications.…”