Previous answer: Stinging Nettle (Urtica dioica)
I grow anywhere where soil has been disturbed. You find me in most sidewalk cracks.
Believe it or not, I am one of the best topical remedies for bee stings!
I help heal wounds, stop bleeding and I am even high in vitamin B.
You make a healing salve out of me in the Herbal Medicine Making Kit.
Who am I?