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.Flora of China Vol. 20-21 Page 252 黄鹌菜属 huang an cai shu Youngia Cassini
Youngia was first described in 1831 by H. Cassini,Cassini, Alexandre Henri Gabriel de. 1831. Annales des Sciences Naturelles (Paris) 23: 88-90 descriptions and commentary in French and the genus was later united with Crepis.Bentham & Hooker, Genera Plantarum 2 (1873): 514 Taxonomic and cytogenetic studies by E. B. Babcock and G. Ledyard Stebbins led to the reclassification of the genus in the 1930s.Babcock, E.B. and Stebbins, G.L. 1937. The genus Youngia. Carnegie Institution of Washington 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.
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