: Kelussia odoratissima Mozaff. is a medicinal species native to Iran. The goal of this research
was to determine the environmental factors important for the distribution of K. doratissima in Iran
using BMLR modeling. Six random transects were established throughout the species’ habitat, and
220 quadrats with an area of 4 m2 were plotted. The canopy cover percentages of K. doratissima
were estimated in each quadrat. Topographic factors, including elevation, slope, and aspect maps,
were generated by creating DEM images. Land use, land evaluation, evaporation, temperature, and
precipitation maps of the area were created accordingly. The data collected from the experiments
were analyzed using the Minitab and R statistical packages. To determine the effect of the studied
factors in the distribution of K. doratissima, we ran a set of backward multiple linear regressions. The
results showed that the effects of evaporation, elevation, and slope were significant in the species’
distribution, with elevation having a positive effect and evaporation and slope showing negative
effects. Further, elevation had the highest effect on distribution (greatest absolute value of beta at
9.660). The next most significant factors in the plant’s distribution were evaporation (beta = 8.282)
and slope (beta = 0.807), respectively.