Hypochaeris radicata aka Cat's Ear

Hypochaeris radicata, also known as catsear, flatweed, cat's-ear, hairy cat's ear, or false dandelion, is a low-lying, rosette-forming, deciduous perennial herb with oblong, shallowly lobed, mid-green leaves and branched, leafless stems bearing dandelion-like, bright yellow flower heads from summer to early autumn. This plant is native to Europe but has naturalized on every continent except Antarctica, and has been introduced to the Americas, Japan, Australia, and New Zealand, where it can be an invasive weed. Cat's Ear tolerates a wide range of conditions and readily grows in most soil types, producing many seeds per plant per year, with each seed being able to become a mature plant in just two months. However, it is listed as a noxious weed in the northwestern U.S. state of Washington. Despite this, some may consider this plant to be edible.