Source : WordNet®

agueweed
     n 1: gentian of eastern North America having clusters of bristly
          blue flowers [syn: {ague weed}, {five-flowered gentian},
           {stiff gentian}, {Gentianella quinquefolia}, {Gentiana
          quinquefolia}]
     2: perennial herb of southeastern United States having
        white-rayed flower heads; formerly used as in folk
        medicine [syn: {boneset}, {thoroughwort}, {Eupatorium
        perfoliatum}]