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In order to study the relationships between plant cover and geomorphological units, the baroon area was selected. This area is located in north west of Iran (west Azarbaijan province) 4.5 km north of Chalderan city between 39° 6’ 21” to 39° 14’ 3” north latitude and 44° 29’ 28” to 440 20’ 20” east longitude. Recognizing the important role of ecological resources, it is known that they must be identified prior to any land evaluation. Thus, as the first stage of land evaluation, the climatic condition, physiography, geology and geomorphology were studied. Then, the plant coverage was determined using maps of the slope, aspect, hypsometry and geomorphology.
The results indicated that there was a relationship between plant communities and geomorphological units in the mountainous unit. In this study, Astragalus (Stenonychium) parrowianus Boiss et Haussk was introduced as the key species of colored melange formation.