Chicory [Cichorium intybus] found near the Silver Leaf Diner, off US Route 11 in DeKalb Junction, New York on 21 June 2013 and near Fletcher Park on 18 June 2016. It’s a member of the Aster (Asteraceae) family. Newcomb’s Wildflower Guide, pages 382-383, says that it blooms in summer and fall, and found on roadsides, in fields and waste places.
Weeds of Canada, Clarence Frankton, Publication 948, 1956 Edition, page 172 states:
Roots of this plant when dried, roasted, and ground, supply the chicory of commerce used as a substitute for coffee, or as an adulterant. A small percentage of chicory in coffee is preferred by many and there is evidence that chicory helps retain the aromatic constituents of coffee.
USDA Plants Listing: http://plants.usda.gov/java/profile?symbol=CIIN