dragonwort

noun4

1. •
   Common bistort, a perennial herb of Europe and Asia, of species Bistorta officinalis (syns. Persicaria bistorta, Polygonum bistorta), formerly used as an astringent.
2. •
   Dragon arum, a perennial herb of Greece and the Balkans, of species Dracunculus vulgaris.
3. •
   Green dragon, of species Arisaema dracontium
4. •
   Tarragon, an edible aromatic herb, of species Artemisia dracunculus, in the daisy family, Asteraceae.