any plant of the chiefly American genus Solidago, which includes the goldenrods: family Asteraceae (composites)
Word origin
C18: via New Latin from Medieval Latin soldago a plant reputed to have healing properties, from soldāre to strengthen, from Latin solidāre, from solidussolid
solidago in American English
(ˌsɑləˈdeɪgoʊ)
nounWord forms: pluralˌsoliˈdagos
goldenrod
Word origin
ModL < ML, goldenrod < L solidare, to strengthen (see solder): in reference to its supposed healing powers