New England Aster (Symphyotrichum novae-angliae) growing at the edge of a road in Geode State Park in Henry county, Iowa.

Details: 

(Top)  Canon EOS 10D,  shutter 1/200 second, aperture f13, ISO 400, Canon EF 100 mm macro lens, Canon MR-14EX flash on

(Bottom)  Canon EOS 10D,  shutter 1/200 second, aperture f11, ISO 400, Canon EF 100 mm macro lens, Canon MR-14EX flash on

Selected References:

Thieret John W, Niering William A, and Olmstead Nancy C. National Audubon Society Field Guide to North American Wildflowers, Eastern Region. New York: Alfred A. Knopf, Inc. Plate 557, P 372-373.

USDA-NRCS. "Plant profile for Symphyotrichum novae-angliae." The PLANTS Database (http://plants.usda.gov/ ). National Plant Data Center, Baton Rouge, LA 70874-4490 USA. 2004. <http://plants.usda.gov/cgi_bin/plant_profile.cgi?symbol=SYNO2 > (20 Sep. 2004).