selfheal

[ self-heel ]
/ ˈsɛlfˌhil /

noun

a plant, Prunella vulgaris, of the mint family, having pinnate leaves and tubular violet-blue flowers, formerly believed to have healing properties.
any of various other plants believed to have similar properties.

Origin of selfheal

First recorded in 1350–1400, selfheal is from the Middle English word selfhele. See self, heal

British Dictionary definitions for selfheal

selfheal
/ (ˈsɛlfˌhiːl) /

noun

a low-growing European herbaceous plant, Prunella vulgaris, with tightly clustered violet-blue flowers and reputedly having healing powers: family Lamiaceae (labiates)
any of several other plants thought to have healing powers
Also called: allheal, heal-all