Pollen morphology of 43 species two subspecies and three varieties of the genera Acanthophyllum, Dianthus, Gypsophila, Petrorhagia, Psammosilene, Saponaria and Vaccaria, of Caryophylleae was observed and studied in detail using scanning electron microscopy. Among them, 28 species two subspecies and three varieties were reported for the first time. The results show that the number and distribution of pores and surface ornamentation have systematic significance. In addition, pollen morphology contributes to infrageneric evolutionary trends of Dianthus, infrageneric and intergeneric classification of Gypsophila, and reveals the differences between the tribes Caryophylleae and Sileneae.

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