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Hypochaeris radicata
''Hypochaeris radicata'' (sometimes spelled ''Hypochoeris radicata''), also known as catsear, flatweed, cat's-ear, hairy cat's ear or false dandelion, is a perennial, low-lying edible herb often found in lawns. The plant is native to Europe,〔(Altervista Flora Italiana, ''Hypochaeris radicata'' L. ) includes photos and European distribution map〕 but has also been introduced to the Americas,〔(Biota of North America Program 2014 county distribution map )〕〔Jørgensen, P. M., M. H. Nee & S. G. Beck. (eds.) 2014. Catálogo de las plantas vasculares de Bolivia, Monographs in systematic botany from the Missouri Botanical Garden 127(1–2): i–viii, 1–1744.〕〔Luteyn, J. L. 1999. Páramos, a checklist of plant diversity, geographical distribution, and botanical literature. Memoirs of The New York Botanical Garden 84: viii–xv, 1–278.〕 Japan,〔(Flora of China, ''Hypochaeris radicata'' Linnaeus, 1753. 假蒲公英猫儿菊 jia pu gong ying mao er ju )〕 Australia〔(Atlas of Living Australia, ''Hypochaeris radicata'' L., Cat's Ear )〕 and New Zealand where it can be an invasive weed. It is listed as a noxious weed in Washington State, in the northwestern United States.
== Botany ==
The leaves, which may grow up to eight inches (20 cm) tall, are lobed and covered in fine hairs, forming a low-lying rosette around a central taproot. Forked stems carry bright yellow flower heads, and when mature these form seeds attached to windborne "parachutes". All parts of the plant exude a milky sap when cut.〔(Flora of North America, Hypochaeris radicata Linnaeus, 1753. Hairy cat’s ear )〕
''Hypochaeris'' species are used as food plants by the larvae of some Lepidoptera species including The Shark.
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