Alpine and subalpine floristic survey of Keyno Mountain, southwest Iran (Khuzestan province)

Keyno Mountain is located at an altitude of ۱,۵۰۰ to ۳,۷۴۷ meters a.s.l. in the Zagros Mountains, on the border between Khuzestan and Chaharmahal and Bakhtiari provinces. To implement a research project, "Floristic study of the Keyno Mountain", plant species were collected at different scheduled intervals. The main objectives of this study are to provide an annotated checklist of the plants, their life forms, chorotypes, and plant endemism in Keyno Mountain. A total of ۱۵۱ species of vascular plants belonging to ۱۱۰ genera and ۳۸ plant families are found in alpine and subalpine zones. The richest families are: Asteraceae (۱۸ species), Lamiaceae (۱۶), Caryophyllaceae and Poaceae (each with ۱۳), Fabaceae and Apiaceae (each with ۱۱). In terms of geographical distribution, ۶۴% of the identified species belong to the Irano-Turanian region. The most abundant vegetation form in the Keyno Mountain area is the Hemicryptophytes (۵۳ species). In the Keyno region, ۲۶ endemic species were identified. The genera Astragalus (۱۰ species), Cousinia (۵ species), and Stachys (۴ species) are the richest on Keyno Mountain. Most endemic species including Astragalus murinus Boiss., Cousinia bazoftensis Attar., Myopordon aucheri Boiss., Cyclotrichum depauperatum (Bunge.) Manden. & Schehg, Azilia eryngioides (Pau) Hedge & Lamond in the Zagros region, including those in the Keyno Mountain, are critically endangered. These plants require strong conservation and management protection because fragile ecosystems are often small, restricted, and isolated.

کلیدواژه ها:

biogeography ، Endemic ، Flora ، Hemicryptophyte ، Irano-Turanian ، Zagros