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  1. By: Babcock, E. B. (Ernest Brown), - Stebbins, G Ledyard, (George Ledyard), Jr.,
    Publication info: Washington, D.C, Carnegie Institution of Washington, 1937
    Holding Institution: Smithsonian Libraries and Archives
    Subjects: Youngia
  1. By: Liu, Qun - Huang, GuiYun - Zhang, Daigui - Zhang, Jianwen - Deng, Tao - Li, Zhimin
    Type: Article
    In: PhytoKeys
    Volume: 182
    Date: 2021
    Page Range: 27--38
    Publication Info: Pensoft Publishers 2021
    Subjects: Crepidinae  Hubei  molecular phylogeny  Morphology  new species  Youngia
  2. By: Slanis, Alberto C. - Perea, María C.
    Type: Article
    In: Boletín de la Sociedad Argentina de Botánica
    Date: 2011-06-01
    Subjects: Asteraceae  Flora adventicia  Flora argentina  maleza  Youngia