What does "horse balm" mean?

erect perennial strong-scented with serrate pointed leaves and a loose panicle of yellowish flowers; the eastern United States

Horse balm

Common synonyms include: collinsonia canadensis, horseweed, richweed, stone root, stone-root, stoneroot.

Rare ·Advanced level

Noun

1
erect perennial strong-scented with serrate pointed leaves and a loose panicle of yellowish flowers; the eastern United States wordnet