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(Leucanthemum vulgare), an herbaceous plant of the family Compositae. The stem of the ox-eye daisy is 15–80 cm tall. The oblong leaves are crenate or dentate, and the inflorescence—a large solitary head—is situated at the top of the stem and the branches. The ray flowers are white and ligulate, and the disk flowers are yellow and tubular. The ox-eye daisy is encountered in the temperate zone of Eurasia in meadows, in forest glades, in thickets, and on fallow land. It sometimes grows as a weed in fields and gardens. The plant is a component of hay fed to livestock. Ox-eye daisies are often grown as ornamentals, and there are double garden varieties. The Russian name for the plant—popovnik—is sometimes used to designate plants of the genus Pyrethrum.