“Cat’s ear (Hypochaeris radicata) is often confused with a dandelion — so much so that it is referred to as “false dandelion.” This look-a-like plant has similar structure, grows in a similar habitat, drives homeowners nuts when it pops up in well-manicured lawns, spits a white milky sap when snapped and has a similar nutritional profile to the dandelion. Flowers are high in lutein and total carotenoids, and the leaf extract has high levels of antioxidants.” - Susan Patternson from “Cat’s Ear: Backyard ‘Weed’ With Super-Antioxidant Properties”
    When looking back at the images I took when I was collecting dandelion seeds, I realized that some were Cat’s Ear. Once you get used to distinguishing Dandelion from Cat’s Ear, it’s pretty easy, especially their texture difference.
    Similar to Dandelion, this weed/plant is also considered to be “noxious invasive weeds,” but once I opened up and picked out the words on those websites, it’s basically “they’re not aesthetically pleasing, and they’re super resilient!” If they’re not toxic to the soil and other plants, I’m allowing them to grow. But I am considering controlling the seeding for neighbors since they probably won’t like them in their yard. 
    Again, even though I could collect and eat them, I’m still hesitant. I remember the deadly amount of pesticides that I sprayed on this area and house.

Some Online Sources on Cat’s Ear:
Dandelion and cat’s ear
Using Cat’s Ear Plants: What Are The Benefits Of Cat’s Ear