Chrysanthemum segetum

Marigold Mar"i*gold, n. [Mary + gold.] (Bot.) A name for several plants with golden yellow blossoms, especially the {Calendula officinalis} (see {Calendula}), and the cultivated species of {Tagetes}. [1913 Webster]

Note: There are several yellow-flowered plants of different genera bearing this name; as, the {African marigold} or {French marigold} of the genus {Tagetes}, of which several species and many varieties are found in gardens. They are mostly strong-smelling herbs from South America and Mexico: {bur marigold}, of the genus {Bidens}; {corn marigold}, of the genus {Chrysanthemum} ({Chrysanthemum segetum}, a pest in the cornfields of Italy); {fig marigold}, of the genus {Mesembryanthemum}; {marsh marigold}, of the genus {Caltha} ({Caltha palustris}), commonly known in America as the {cowslip}. See {Marsh Marigold}. [1913 Webster]

{Marigold window}. (Arch.) See {Rose window}, under {Rose}. [1913 Webster]