Abstract Three new cyclic diarylheptanoids myricananins F–H ( 1 – 3 , resp.), along with five known ones, 4 – 8 , were isolated from the roots of Myrica nana. Compound 3 has been obtained by Nagai et al. by reduction of porson with NaBH 4 . In this work, compound 3 was isolated from natural origin for the first time. The structures of 1 – 8 were elucidated using spectroscopic methods.