Symphyotrichum puniceum (L.) A. & D.Löve var. puniceum
October 2,
Arnold Arboretum, Jamaica Plain, Boston
October 2,
Arnold Arboretum, Jamaica Plain, Boston bristly aster, swamp aster
Leaf margins are sharply serrate, and the leaf surface feels like
sandpaper (scabrous). Leaves are auriculate, clasping.