Abstract
 Aim of study: was to determine the vascular flora Ormanüstü Planning Unit (Karadeniz Technical University Education-Research and Application Forest). 
 Area The research area is under influence Euro-Siberian phytogeographical region represented with a high rate (44%, 288 taxa). Irano-Turanian Mediterranean elements are by 26 (4%) 22 taxa (3%), respectively. Totally 320 (49%)...

Abstract Dorema (Apiaceae) includes 12 species distributed in the Irano-Turanian region. The genus differs from other genera of subfamily Apioideae having paniculate inflorescences with simple umbels. Recently, molecular phylogenetic analyses placed six Dorema, including generitype, Ferula , thus subsuming former into synonymy latter. remaining congeners have not been yet included analyses. Her...

Caryophyllaceae is the fifth largest Iranian plant family in terms of number of species where most of its species are Irano-Turanian. About 30% of these species are endemic of Iran. There are continuously uncertainties regarding the circumscription of genera, and especially because of new molecular and phylogenetic studies that in many cases do not confirm the traditional generic circumscriptio...

Onosma L. as a rich taxa in Boraginaceae including about 150–180 species, centered mainly in Irano-Turanian region. The genus faced with several systematic complexities lead to many identification problems as well as morphological polymorphism. Several authors have used setae characteristics in Onosma as the most important diagnostic evidence in delimitation and classification of species in add...

Iran is a mountainous country. Hezar Mt., is an isolated mountain with the highest peak of 4465 m (above sea level) located in southeast of Iran. This paper aims to provide a general overview of alpine phytodiversity of Hezar Mt. Alpine regions are above timber-line which is dependent on the climate, slopes and human activities. The timberline at Hezar Mt., is varying from 3200 m (North slope) ...

flora of jahanbin mountain area in chaharmahal and bakhtiari province, located between shahrekord and hafshejan cities, with 12’187 hectares and 2’150 to 3’300 m elevation above sea level, is investigated. vegetation of this area comprises of 273 species, 189 genera and 42 families. asteraceae (37 species, 13.5%), poaceae (31 species, 11.3%) and fabaceae (25 species, 9.1%) were the most importa...

the wild pistachio, pistacia atlantica subsp. mutica, is belonged to mountain of irano-turanian region, and distributed in northwest, northeast, center, east and south of iran. the sexual identification mechanism of this species is unknown and denotation of gender is impossible until flowering. in this study sex ratio of populations of this dioecious shrub was evaluated by several hypothesis co...

the mountainous area of fereizi is located in northwestern binalood range, khorassan, north east of iran. special climatic and geographical characteristics of the area make it a suitable habitat for various plant species. as a part of a research poject on the flora and vegetation of binalood mountain range, the floristic composition of this area, life forms and chorology of vascular plants have...