Bellis perennis is a common European species of daisy, the family Asteraceae. Many related plants also share the name "daisy", so to distinguish this species from other daisies it is sometimes qualified as common daisy, lawn daisy or English daisy.
Bellis perennis is a perennial herbaceous plant with short creeping rhizomes and rosettes of small rounded or spoon-shaped leaves that are from 3/4 to 2 inches (approx. 2–5 cm) long and grow flat to the ground. The species habitually colonises lawns, and is difficult to eradicate by mowing – hence the term 'lawn daisy'. Wherever it appears it is often considered an invasive weed. Bellis perennis generally blooms from early to midsummer, although when grown under ideal conditions, it has a very long flowering season and will even produce a few flowers in the middle of mild winters. Bellis may come from bellus, Latin for "pretty", and perennis is Latin for "everlasting".