''Youngia'' is a genus of Asian plants in the tribe Cichorieae within the family

Asteraceae The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae w ...

. There are several weedy species in the genus as well as the endangered ''

Youngia nilgiriensis ''Youngia nilgiriensis'' is an endangered perennial herb. It is endemic to the Sispara area of the Kundah range of the Nilgiri Hills, Tamil Nadu, South India characterised by vast stretches of grasslands interrupted by numerous sholas at an al ...

'' from

Sispara Sispara , സിസ്പാര (Sisapara, Sisparra, Sisparah, Su:spore), a proper noun, is a combination of the Badaga language words ''si:su'' + ''pore''; meaning: magnetite bearing rock + gorge. It may refer to: * Sispara peak, a large hill ...

in southern

India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...

, and '' Youngia japonica'', which is also known as Japanese hawkweed. ''Youngia'' was first described in 1831 by H. Cassini, and the genus was later united with '' Crepis''. Taxonomic and cytogenetic studies by

E. B. Babcock Ernest Brown Babcock (July 10, 1877 – December 8, 1954) was an American plant geneticist who pioneered the under standing of plant evolution in terms of genetics. He is particularly known for seeking to understand by field investigations and e ...

and

G. Ledyard Stebbins George Ledyard Stebbins Jr. (January 6, 1906 – January 19, 2000) was an American botanist and geneticist who is widely regarded as one of the leading evolutionary biologists of the 20th century. Stebbins received his Ph.D. in botany from Har ...

led to the reclassification of the genus in the 1930s.Koh Nakamura et al., 2012. Extreme habitats that emerged in the Pleistocene triggered divergence of weedy ''Youngia'' (Asteraceae) in Taiwan. Molecular Phylogenetics and Evolution 63: 486–499. ; SpeciesFlann, C (ed) 2009+ Global Compositae Checklist search for ''Youngia''
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References

Asteraceae genera Taxa named by Henri Cassini {{Cichorieae-stub