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 center consisting of bright yellow disk flowers, though other color combinations are common.
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 perennis) and the oxeye daisy (Leucanthemum vulgare, sny. Chrysanthemum leucanthemum).