This small purple flowering plant can be found throughout North America. When you recognize it, please post its common name and its scientific name below. Feel free to share any personal story you may have about this plant.
ANSWER (subsequently added to this post to facilitate the “search” function for these images): Venus’ looking glass (Triodanis perfoliata)
Also, read the blog post and watch the plant portrait video for Venus’ looking glass (Triodanis perfoliata).