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 …The meaning of daisy is a composite plant (as of the genera bellis or chrysanthemum) having a flower head with well-developed ray flowers usually arranged in one or a few whorls.