Gisele, think it's not always that wild (lol), as to me you've depicted (a species/variety of) the Eutrochium fistulosum aka Hollow Joe-Pye Weed; Queen-of-the-Meadow; or Trumpet Weed. This may be a wild one but there are some garden cultivars as well.
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As above wow this is a unique looking wild plant and what a complex flower heads it as too.You captured it superbly with outstanding detail and I see natural colours to plus nice compstion as well Gigi.