I’ve always heard these called “wild geranium”, and Google seems to agree. They are pungent when you break a stem, and the leaves turn deep magenta/red/orange in the fall. They are fuzzy and frilly – too bad they’re weeds and can take over when you turn your back. When I was a little girl, we would make “scissors” out of two seed pods: slit the long slender piece with a fingernail, insert the other long slender piece, and voila!