Floristic and chorological survey of plants in Miandar region in Gilangharb city

The purpose of the current research is to investigate the floristics and chorology of plants in Miandar region in Gilangreb city.

After preparing a map (scale: 1:25000) and viewing photos and determining the geographical area of ​​the region, plants were collected in late winter and all months of spring and summer seasons of 2013. The collected samples were pressed dry and pasted on herbarium cardboards according to the conventional method.

The collection of plants in Miandar region is more than 229 plant species belonging to 41 genera and 148 genera. Asteraceae families (33 species, 14.41 percent), papilionaceae (22 species, 9.6 percent), poaceae (19 species, 8.3 percent), Apiaceae (16 species, 6.99 percent), Lamiaceae (15 species, 55 (6.6%) and Liliaceae (12 species, 5.24%) are the most important plant families in the region, which include 51.09% of all species. Astraglus (10 species), Silene (5 species), Euphorbia (5 species) are among the largest plant genera in the studied area. In terms of biological form, 40.6% of species are hemicryptophytes, 35.38% are trophites, 11.36% are cryptophytes, 8.3% are phanerophytes, 3.94% are camphytes and 0.44% are geophytes.

The study of the geographical distribution of the Miandar region flora showed that the most geographical distribution is in the Iranian-Turanian region with 122 species (53.27%) and the Iranian-Turanian/Mediterranean region with 34 species (14.85%).