University of Isfahan Journal of Plant Biological Sciences 3041-9603 9 2 2017 09 21 Flora, life form and chorology of plants in Jozak – Chaminbid area, North Khorassan Province, Iran Flora, life form and chorology of plants in Jozak – Chaminbid area, North Khorassan Province, Iran 69 88 21932 10.22108/ijpb.2017.94783 FA MOHABAT NADAF Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran Hamid Ejtehadi Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran Mansour Mesdaghi Department of Range and Watershed Management, Faculty of Natural Resources and Environment, Ferdowsi University of Mashhad, Mashhad, Iran Mohammad Farzam Journal Article 2016 09 05 Floristic study of a region is of great importance as the list of plants represents the genetic resources of the area. The intended region (Jozak-Chaminbid) with an area of ca. 3637.81 ha. is located in the western part of North Khorassan Province in the Maneh and Semelghan counties. Phytogeographically, this region is located in Khorassan-Kopet Dagh floristic province of the Irano-Turanian region. The mean altitude is 1415 meter and mean annual precipitation of the area is 559 mm. The plant species of the area were collected and identified according to the Floras. The floristic list of the area and its life forms and endemic species were presented. The results showed the presence of 53 families, 205 genera and 308 species. Among them 13 species were endemic to Khorassan-Kopet Dagh Province. The largest plant family was Asteraceae with 28 genera and 40 species. According to Raunkiaer’s life form categories, the identified species are categorized as hemicryptophytes 35.38%, therophytes 34.74%, cryptophytes (geophytes) 12.33%, chamaephytes 11.03% and phanerophytes 6.49%. The high percentage of hemicryptophytes indicated that the area had a cold mountain climate. The chorotype of species was obtained on the basis of the available sources. Irano-Turanian plants were the most frequent chorotype of the area with 59%. <br />  <br />  <br />  Floristic study of a region is of great importance as the list of plants represents the genetic resources of the area. The intended region (Jozak-Chaminbid) with an area of ca. 3637.81 ha. is located in the western part of North Khorassan Province in the Maneh and Semelghan counties. Phytogeographically, this region is located in Khorassan-Kopet Dagh floristic province of the Irano-Turanian region. The mean altitude is 1415 meter and mean annual precipitation of the area is 559 mm. The plant species of the area were collected and identified according to the Floras. The floristic list of the area and its life forms and endemic species were presented. The results showed the presence of 53 families, 205 genera and 308 species. Among them 13 species were endemic to Khorassan-Kopet Dagh Province. The largest plant family was Asteraceae with 28 genera and 40 species. According to Raunkiaer’s life form categories, the identified species are categorized as hemicryptophytes 35.38%, therophytes 34.74%, cryptophytes (geophytes) 12.33%, chamaephytes 11.03% and phanerophytes 6.49%. The high percentage of hemicryptophytes indicated that the area had a cold mountain climate. The chorotype of species was obtained on the basis of the available sources. Irano-Turanian plants were the most frequent chorotype of the area with 59%. <br />  <br />  <br />  https://ijpb.ui.ac.ir/article_21932_32d50c27ce2c141a9a98374a3b480c54.pdf