Mar·i·gold n.  Bot. A name for several plants with golden yellow blossoms, especially the Calendula officinalis (see Calendula), and the cultivated species of Tagetes.
 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.
 Marigold window. Arch. See Rose window, under Rose.

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 Ca·len·du·la n.  Bot. A genus of composite herbaceous plants. One species, Calendula officinalis, is the common marigold, and was supposed to blossom on the calends of every month, whence the name.

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 Calendula officinalis
      n : the common European annual marigold [syn: common marigold,
           pot marigold, ruddles, Scotch marigold]