Los géneros con mayor riqueza de especies son: "Vernonia" (800-1000), "Crepis" (200)," Jurinea" (200), "Scorzonera" (175), "Lepidaploa" (115), "Tragopogon" (110), "Lessingianthus" (100), "Hieracium" (90-1000), "Lactuca" (75), "Vernonanthura" (65), "Hypochaeris" (60), "Sonchus" (60) y" Taraxacum" (60-2000).