...菊属Cnicus.........藏掖花属Coleostephus...鞘冠菊属Conyza.........白酒草属Coreopsis......金鸡菊属Cosmos.........秋英属Cotula.........山芫荽属Cousinia.......刺头菊属Crassocephalum.野茼蒿属Cremanthodium..垂头菊属Crepidiastrum..假还阳参属Crepis.........还阳参...