1. Tufted rigid North American perennial with loose clusters of white flowers
   - upland white aster

Type of: aster

• concision
• conclave
• conclude
• concluded
• concluding
• conclusion
• conclusion of law
• conclusive
• conclusively
• conclusiveness
• conclusory
• concoct
• concoction
• concomitance
• concomitant
• concomitantly
• concord
• Concord grape
• concordance
• concordant
• concordat
• concourse
• concrescence
• concrete
• concrete jungle