Flora, Life Form and Chorology of plants in the Dareh Anar watershed basin in Bagmalek- Khuzestan

Identification and introduction of flora in a region has a particular importance in various aspects. In this regard, plant species were identified and named in Darreh Anar watershed basin in Baghmalek. Plant species were identified and their chorology, life form, endemic and rare plants determined through laboratory examinations and by using reference books. Floristic surveys resulted in identification of 132 plant species, belonged to 103 genera and 43 families. The families of Poaceae (23 species), Papilionaceae (20 species), Asteraceae (16 species) and Apiaceae (6 species), were the most important families which include? percent of total species. The dominance of Therophytes and Hemichryptophytes (92%) Life forms indicates the specific flora of mountainous regions and the cold climates in this region. From the 132 species of flora, 74 species (55.6%) are soil conservation plants, 71 species (53.4%) have forage value, 55species (41.35%) are medicinal plants and 11 species (8.3%) are edible plants. Irano-Turanian (63 species) and multi-regional (54 species) were the most dominant (87.97%) Chorotypes. The dominance of Irano-Turanian and multi-regional, can be referred to the dry and warm climate in Khuzestan and simultaneous effects of water and disturbance on the flora of this region. The threat status also indicated that none of the plant species exists in the range of threatened species. Only one species (Tribulus terrestris L.) was recognized in the domain of vulnerable plants, 14 species (10.5%) in the domain with less threat (slightly vulnerable), and 17 species (12.8%) was endemic species.