mugwort

noun2

1. •
   Any member of the species Artemisia vulgaris of plants native to temperate Eurasia and north Africa, traditionally used medicinally.

   • Peony would keep away any kind of storms. Mugwort hung over doorways on Midsummer's Day, June 24, would keep off lightning, as St. John's-Wort would if gathered before sunrise on that day. — 1940
2. •
   Any of several aromatic plants of the genus Artemisia native to Eurasia, Africa, and North America.