Common Names: Jerusalem thorn
Scientists in Pakistan studied the pollen traits of plants in the subfamily Caesalpiniaceae to better understand their taxonomy. They collected samples from various regions and analyzed them using light microscopy and scanning electron microscopy. They found significant variation in features such as equatorial shape, surface ornamentation, tectum, polar diameter, equatorial diameter, and exine thickness. A taxonomic key was developed to aid in the identification of species. This study highlights the importance of pollen traits in defining species boundaries and advancing the taxonomy of this subfamily.