Geranium tuberosum L. (Geraniaceae) is perennial tuberous herb and it is represented in Turkey by two subspecies (subsp. tuberosum and subsp. deserti-syriacum). In this study samples were investigated, morphologically and palynologically which are collected from different localities. The morphological features of various organs of the plants such as stem, leaf and fl ower are given in detail. In palynological studies, pollens were investigated with light microscopy and SEM