Daisy is used as a feminine name, and sometimes as a nickname for people named margaret, after the french name for the oxeye daisy, marguerite.The daisy is the national flower of the netherlands.Daisy is the common name for a large number of dicotyledonous flowering plants within the asteraceae (or composite) family, and in particular is associated with the true, common, or english daisy (bellis …Daisy, any of several species of flowering plants belonging to the aster family (asteraceae).Daisies are distinguished by a composite flower head composed of 15 to 30 white ray flowers surrounding a …