This is Common Selfheal. A medicinal plant found all over.
Self Heal (Prunella vulgaris) is a low-growing wild mint with dense purple flower spikes that’s been used as a folk medicine for cuts, sore throats, and just about everything else for centuries. Learn how to identify self-heal, when and how to harvest it, and how to use the leaves and flowers in teas, tinctures, salves, and other simple herbal preparations.