Leucanthemum vulgare (aka Chrysanthemum leucanthemum)
From the Wikipedia,
Leucanthemum vulgare is a perennial herb one to three feet high by 1 foot wide. The stem is mostly unbranched and sprouts laterally from a creeping rhizomatous rootstock….
Leucanthemum vulgare blooms from late spring to autumn. The small flower head, not larger than 2 in, consists of about 20 white ray florets that surround a yellow disc, growing on the end of 1 to 3 ft tall stems. The plant produces an abundant number of flat seeds, without pappus, that remain viable in the soil for 2 to 3 years. It also spreads vegetatively by rhizomes.
The wild daisy is difficult to control and produces as much as 4 times the number of seeds produced by similar plants. It is considered an invasive species producing dense colonies that displace native plants. It is also classified as a noxious weed.
If you actually would like to cultivate this plant, visit the Wikipedia for instructions.