P. Dr. Péter Tétényi
Different taxonomic approaches proved that any classification should be based on chemical features in the family PAPAVERACEAE either. Thus the genus Papaver is characterized by the overall presence of meconic acid in the latex and of rhoeadanes, as well as - restricted to some sections - of pigments, alkaloids etc. This chemotaxonomic basis emphasized many relationships in the tribe Papavereae.

The inherence of biochemical similarities and differences of Papaver sections are stressed one after the other: starting with Meconella, pointing out a cline type alkaloid variation in Meconidium, and after dealing with some other sections finishing by the most developed Papaver. Based on all of these data-relations, analogous changes of pigmentation and development of alkaloid biosyntheses at the sections it is suggested a chemotaxonomically plausible, classification of the genus Papaver.

Péter Tétényi, P. Dr. (1993). CHEMOTAXONOMY OF THE GENUS PAPAVER. Acta Hortic. 344, 154-165
DOI: 10.17660/ActaHortic.1993.344.19

Acta Horticulturae