The study was carried out in rangelands of Isparta region in the years 2007-2008, in order to determine the plant species, which forms important source of income for the region and which also have medicinal-aromatic values that is important for beekeeping. As aim of this study, 1st of all the medicinal-aromatic plant species that are found in the rangelands of the region were detected. Totally 181 vascular plant taxa belonging to 25 families that are in condition of pollen and nectar source for bees were detected as a result of observations. The biggest family that is visited by the bees is Lamiaceae family with 48 taxa, followed by Fabaceae family with 35 taxa and Asteraceae family in the 3rd place with 29 taxa. In addition to this, when the flowering periods that is of great importance for beekeeping are taken into regard, April-June were determined to be the richest periods for flowering.