Anatomical Study in Some Species of Tamarix in Iran

The genus Tamarix has about 60 species growing mainly in saline areas of deserts and semi-deserts in Asia, Europe, northeastern and southwestern Africa. Thirty-five species of Tamarix are grown in Iran, which have been used in fields to prevent deforestation, control soil erosion or for ornamental purposes. We have limited information on anatomical features of these species. We used 15 anatomical characters for our investigation in 10 species. PCoA ordination of the studied species based on anatomical data separated some of these species from the others. We identified 5 species that were well delimited by anatomical analysis.