Youngia
''Youngia'' is a genus of Asian plants in the tribe Cichorieae within the family Asteraceae. There are several weedy species in the genus as well as the endangered ''Youngia nilgiriensis'' from Sispara in southern India, 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 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. ; Species Reference ...
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