Micro-morphological study of Polygonaceae tribes in Iran

As a family, Polygonaceae has a complex taxonomic historical position that experienced different treatment
in the floras. In order to clear delimitation of its tribes in Iran, in this study we consider the macro and micromorphological
features of tepal epidermis, dorsal leaf epidermis, achene surface, and pollen grains in 10
populations from different habitats in Iran. The results of cluster analysis have revealed that Rumiceae has an
interesting position in phenogram topology. Micro-morphological characters proved more efficient in the
separation of Persicarieae elements in Iran than in two other tribes. The results of this project show distinctly
Polygonum s. str. and Persicaria as separate genera in the flora of Iran.