dragon's wort
noun
University
1
A perennial herb, tarragon, Artemisia dracunculus.
2
Dracunculus vulgaris, dragon arum, a flowering plant in the arum (Araceae) family.
3
Bistorta officinalis (common bistort, a plant in the knotweed (Polygonaceae) family, once classified as Persicaria bistorta and Polygonum bistorta.
4
Arisaema dracontium, green dragon, a herbaceous perennial native to North America.