Stilbenolignans are phenolic compounds formed from a stilbenoid and a lignan.
The stilbenolignan aiphanol can be found in the seeds of Aiphanes aculeata. Gnetucleistol F, gnetofuran A, lehmbachol D, gnetifolin F and gnetumontanin can be found in Gnetum cleistostachyum.
References
Stilbenolignan Wikipedia(Text) CC BY-SA