title: Chemistry of polyploids: a summary with comments on Parthenium (Asteraceae-ambrosiinae).
mesh_terms: D005075:Biological Evolution; D055598:Chemical Phenomena; D002621:Chemistry; D005419:Flavonoids; D006824:Hybridization, Genetic; D010944:Plants / Q000235:genetics*; D011123:Polyploidy
chemical_list: D005419:Flavonoids