Haplophyllum megalanthum Bornm. which has been included in the list of EN (Endangered) the IUCN threat category was investigated morphologically, anatomically and palynological. Some different morphological characteristics determined from its description given in the Flora of Turkey for the species. The pollen grains were radial symmetrical, isopolar, tricolporate. Pollen shape differed from subprolate to spheroidal.
