AnthraquinonesRheumSenna ExtractEmodinRubiaceaeDrugs, Chinese HerbalMedicine, KampoMorindaSenna PlantRubiaSesamumAnthracenesPlants, MedicinalCarmineRumexGlucosidesCassiaIridoidsGlycosidesAloeRhamnaceaeMolecular StructureHedyotisClusiaceaePlant ExtractsPhytotherapyArachnidaPlant BarkEurotiumSecondary MetabolismMitoxantroneIntercalating AgentsScent GlandsChromatography, High Pressure LiquidMagnetic Resonance SpectroscopyNaphthoquinonesCatharticsSpectrophotometry, InfraredEnediynesPolygonumPlant Roots