title: The flavonoids of Parthenium L.
abstract: The distribution of 34 flavonoids detected in the North American species of Parthenium L. is presented. Of the 27 flavonoids identified (some tentatively) all are flavonols: eight are based on kaempferol, seven on quercetin, four on 6-hydroxykaempferol and eight on the quercetagetin skeleton. Of the 34 flavonoids detected, 19 are glycosides and 15 are aglycones, primarily highly methylated compounds.
authors: Phytochemistry Laboratory, Academy of Natural Sciences of Philadelphia, USA.
authors: J A
authors: JA
authors: Mears
mesh_terms: D019659:Asteraceae / Q000737:chemistry*; D002867:Chromones / Q000737:chemistry / Q000302:isolation & purification; D047309:Flavones; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification; D044949:Kaempferols / Q000737:chemistry / Q000302:isolation & purification; D015394:Molecular Structure; D009656:North America; D011794:Quercetin / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D002867:Chromones; D047309:Flavones; D005419:Flavonoids; D006027:Glycosides; D044949:Kaempferols; C006552:kaempferol; D011794:Quercetin; C079163:quercetagetin