Symphyotrichum patens (Aiton) Nesom var. patens
September 19,
Middlesex Fells Reservation, Medford
September 19,
Middlesex Fells Reservation, Medford clasping aster, skydrops, skydrop aster
Leaves are entire, sessile, conspicuously cordate-clasping, hence
another common name--clasping aster.