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Prunella vulgaris (known as common self-heal, heal-all, woundwort, heart-of-the-earth, carpenter's herb, brownwort and blue curls) is a herbaceous plant in the genus Prunella.

Self-heal is edible: the young leaves and stems can be eaten raw in salads; the plant in whole can be boiled and eaten as a potherb; and the aerial parts of the plant can be powdered and brewed in a cold infusion to make a beverage.

Prunella vulgaris grows 5 to 30 cm high (2-12inches), with creeping, self-rooting, tough, square, ...