[Wikipedia] Europe & Asia native, Invasive: Leucanthemum vulgare, commonly known as the ox-eye daisy, oxeye daisy, dog daisy, marguerite (French: Marguerite commune, "common marguerite") and other common names,[2] is a widespread flowering plant native to Europe and the temperate regions of Asia, and an introduced plant to North America, Australia and New Zealand. L. vulgare is one of the most widespread weeds in the Anthemideae. It became an introduced species via gardens into natural areas in parts of Canada,[14] the United States,[15] Australia,[4] and New Zealand.[16] In some habitats it forms dense colonies displacing native plants and modifying existing communities.[10][17][18] The plant commonly invades lawns, and is difficult to control or eradicate, since a new plant can regenerate from rhizome fragments[10] and is a problem in pastures where beef and dairy cattle graze, as usually they will not eat it, thus enabling it to spread;[16] cows who do eat it produce milk with an undesirable flavor.[19] It has been shown to carry several crop diseases.[20] (link added by Mary Ann Machi)