Floristic Study of Anagyris foetida L. Stand in Kermanshah Province (Iran)

Document Type : Research Article


1 Department of Natural Resources, Campus of Agriculture & Nat. Res., Razi University, Kermanshah, Iran.

2 Department of Biology, Faculty of Science, Razi University, 6714967346 Kermanshah, Iran.



Western forests of Iran are considered the richest biological resources of Iran. The rangelands of forest provide the bulk of the forage needed for livestock of nomads and villagers in the region. Therefore, research on this forest vegetation is very necessary. In this research, the studied area is part of the middle-sized Zagros forest ecosystem located in the Kaseh-Garan of Gilan-e-Gharb area (Kermanshah province, Iran). This research aims to achieve the effect of the canopy cover of bean trefoil (Anagyris foetida) as a nursing plant in identifying accompanying species and also identifying the dominant flora of the region. For this purpose, 55 samples were taken based on a randomized pattern with 100 * 100 m network dimensions. By inserting 1 × 1 m microplates into each plot, the total number of plants per unit area was investigated. The results of land surveying in the forests of the region showed that A. foetida with 61.5% had the highest coverage. Also, all of the plant specimens of this area were collected and identified using botanical resources in the Razi University herbarium (RUHK). In the floristic study, a total number of 333 plant species were belonging to 225 genera and 58 families. Among the plant families, Asteraceae had the highest number of plant species with about 19%. In terms of life forms, the highest percentage for both therophytes and hemicritophytes (41%) were found. In the chorological study, the highest frequency related to the Irano-Turanian elements (66%), Irano-Turanian, and Mediterranean areas (9%), Irano-Turanian, the Mediterranean, and Euro-Siberian (8%), Irano-Turanian and Euro-Siberian (7%), and remaining 10 percent related to species with other geographical distribution in the area. Although the Kaseh-Garan area is phytogeographically related to Irano-Turanian, elements from the Mediterranean and Sahara-Sindian have infiltrated this region. Therefore, the presence of bean trefoil stands (with 61.5% coverage), high floristic diversity, and special vegetation of Kaseh-Garan shows the importance of this region and the protection of vegetation in this area is necessary.


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