dahlia(n = noun.plant) dahlia pinnata - any of several plants of or developed from the species Dahlia pinnata having tuberous roots and showy rayed variously colored flower heads; native to the mountains of Mexico and Central America and Colombia;
is a kind of flower
is a member of genus dahlia
dahlia, n. any composite garden plant of the genus Dahlia, of Mexican origin, cultivated for its many-coloured single or double flowers.
Etymology:
A. Dahl, Sw. botanist d. 1789