Cichorium intybus L.
Family: Asteraceae
blue-sailors, chicory
Cichorium intybus image
Paul Drobot  
Etymology: Cichorium: Latinized version of an Arabic name for one species of this genus from the Greek kichore, which usually carries a common name of chicory or endive
Plants: erect, perennial, 1'-6' tall forb with milky juice; stems widely branched; long taproot
Leaves: alternate, entire to pinnately-divided, becoming smaller toward the top
Flowers: head up to 1 1/2" wide with many blue to white rays, no disk; inflorescence of 1-3 widely spaced heads from upper leaf axils; blooms July-Oct.
Fruits: dry, smooth seed without a fluffy pappus
Habitat: disturbed sites, roadsides
Invasiveness: Invasive - Eradicate!
Conservation Status: Introduced - naturalized; ecologically invasive