... sterol, dandelion sterol, β- incense resin alcohol, stigmasterol, β- sitosterol, choline, organic acids, fructose, sucrose, dextrose, glucose glycosides and resins, rubber. Leaves contain ... flavin. Pollen containing β- sitosterol, 5z- bean-7-en -3β- alcohol, folic acid and vitamin C. Green calyx containing phylloquinone. Stems containing ...