Contribution to the systematic value of the leaf trichomes in the Cordiaceae (Boraginales)

Leaf trichomes are vital for plant physiology, defense, and ecological interactions. This study utilized scanning electron microscopy to examine the leaf trichomes of 7 species in the family Cordiaceae, including 5 species from the genus Cordia and 2 from Varronia. Various types of trichomes, including glandular, non-glandular, and stellate, were observed. Our findings highlight differences in trichome types, density, and distribution both within and between genera. This research enhances the understanding of anatomical diversity and the significance of leaf trichomes in Cordiaceae, providing a foundation for future studies in plant biology. The high diversity of trichome structure in the studied species indicates their importance for their classification. Therefore, the results of this study provide a useful insight into the diversity of trichomes and their potential as a taxonomic tool.