Common Cat's-Ear flower, Hypochaeris radicata

Catsear, also known as flatweed, cat's ear or false dandelion, is a perennial, low-lying edible herb often found in lawns. The plant is native to Europe, but has also been introduced to the Americas, Japan, Australia and New Zealand where it can be an invasive weed. It is listed as a noxious weed in Washington State, USA.