Late Purple Aster
Symphyotrichum patens

f16 @ 1/1250s, ISO:2500, Nikon D3S w 105mm macro

"Symphyotrichum patens," Wikipedia, the free encyclopedia. Sympyotrichum patens is a perennial and herbaceous flowering plant usually between 10 and 100 centimeters (1⁄4 and 3+1⁄4 feet) tall. It has a spreading growth form, and the leaves are ovate to oblong and clasp the pubescent stem. The flowers are relatively small, less than 3 centimeters (1+1⁄4 inches) in diameter, with light blue to violet ray florets and yellow disk florets. It flowers between August and October.
Francis A. Crane Wildlife Management Area, East Falmouth, Massachusetts