helianthus annuus(n = noun.plant) common sunflower, mirasol - annual sunflower grown for silage and for its seeds which are a source of oil; common throughout United States and much of North America;
is a kind of helianthus, sunflower
has parts: sunflower seed

erigeron annuus, genus helianthus, helianthus, helianthus angustifolius, helianthus giganteus, helianthus laetiflorus, helianthus maximilianii, helianthus petiolaris, helianthus tuberosus, scleranthus annuus