Eutrochium dubium (Willd. ex Poir.) E.E.Lamont
Atlantic Joe-Pye-weed
Atlantic Joe-Pye-weed
December 28,
Arnold Arboretum, Jamaica Plain, Boston
Stems scabrous puberulent and viscid toward summit, involucre cylindric; phyllaries oblong, tightly oppressed, of variable length, the inner ones acutish, the outer blunt.