]> NEBC barcode-00872452 United States of America Massachusetts Mystic River Watershed, Middlesex Fells Reservation, MIT Observatory site on hill on Rock Circuit Trail, GPS 42°26.493’N, 71°5.110’W Erigeron strigosus Muhlenberg ex Willdenow Muhlenberg ex Willdenow 2017-03-17 14:08:04 W. T. Kittredge