Many other herbs may be used as well , such as hyssop , melissa , star anise , petite wormwood ( Artemisia pontica or Roman wormwood ) , angelica root , Sweet Flag , dittany leaves , coriander , veronica , juniper , nutmeg , and various mountain herbs . Many other herbs may be used as well , such as petite wormwood ( Artemisia pontica or Roman wormwood ) , hyssop , melissa , star anise , angelica , sweet flag , dittany , coriander , veronica , juniper , and nutmeg .