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Abstract: In this study pollen morphological diversity is described for Alopecuroidei DC.(Alopecias bunge) species belonging to genus Astragalus L. (Fabaceae) occurring in Turkey. The study was based on light and scanning electron microscopic observations of pollen grains collected from herbarium specimens. Members of the section studied posses tricolpate subprolate or prolate spheroidal pollen grains with a microreticulate exine ornamentation and semi-angular amb.