See text Opopanax is a genus of plants in the family Apiaceae.

Opopanax includes four species:[1] The genus name Opopanax derives from Anglo-Norman opopanac, from Latin opopanax, from Hellenistic Greek ὀποπάναξ, from Ancient Greek ὀπός (opos, "juice") + πάναξ (panax, "all-healing").

[2] Therefore, opopanax literally means the juice (gum resin) of all-heal.

There were many different plants called all-heal (πάνακες or panaces) in Ancient Greece and Rome.

However, according to Dioscorides, opopanax was obtained specifically from a kind of all-heal named πάνακες Ἡράκλειον (panaces Heraclion, "Hercules' all-heal"), which has been identified as Opopanax chironium,[3][4][5] O. persicus[5] and O.