English Daisy

Bellis perennis, the English or lawn daisy, is a low rosette-forming perennial from Europe, three to six inches high, with spoon-shaped semi-evergreen leaves flat to the ground. Flowers rise on short bare stems from spring into summer — single white daisies with a yellow eye in the wild plant, and dense pink, red or white pompons in the garden forms.

This is the daisy of lawns, and whether it is a weed or a flower is entirely a matter of what you want from the grass — it survives mowing because the leaf rosette sits flat below the blade. The garden forms are grown as spring bedding and are usually short-lived, often behaving as biennials and then seeding themselves about.