title: Variation in the content and the composition of the essential oils in flower heads of Matricaria chamomilla L. during its ontogenetical development.
mesh_terms: D009822:Oils, Volatile / Q000032:analysis*; D010946:Plants, Medicinal / Q000235:genetics / Q000254:growth & development*; D011003:Ploidies
chemical_list: D009822:Oils, Volatile