资料来源 : Webster's Revised Unabridged Dictionary (1913)
Sunflower \Sun"flow`er\, n.
Any plant of the genus {Helianthus}; -- so called probably
from the form and color of its flower, which is large disk
with yellow rays. The commonly cultivated sunflower is
{Helianthus annuus}, a native of America.
资料来源 : WordNet®
Helianthus annuus
n : annual sunflower grown for silage and for its seeds which
are a source of oil; common throughout United States and
much of North America [syn: {common sunflower}, {mirasol}]