... , brightening the eyes and making the body feel light. The parts of this herb used medicinally include the bark, and the unopened flower buds. The unopened flowers ... (eudesmol, maschilol, pinene), alkaloids (magnoflorine, salicifoline, magnocurarine), and tannin. The unopened flower buds contain essential oils (anethole, camphene, cineol, estragole, eugenol, limonene ...