study of flora, life form and chorology of plants in qom province, iran

Qom province with the surface area of 11526 km2 lies between 34˚8́ 35˚11́ n and 50˚4́ 51˚59́ e is located in iran. according to the global bioclimatic classification system (gbc), qom province characterized by a mediterranean climate and of xeric and desertic continental sub-climates. a checklist was prepared to outline the species richness of the studied area, including 841 plant species representing 385 genera and 81 families. 109 species were also reported for the first time, which were not previously reported from this province in botanical sources and studies. angiosperms are represented by 734 and 100, eudicots and monocots, respectively. the prominent families are asteraceae with, 117 and fabaceae with, 87 species. richest genera fall into astragalus (59), salsola (16) and cousinia (15). however, 51.8% of the families are monogene0ric, while 59.5% of the monogeneric families are monospecific. therophyte (37.9%) and hemicryptophyte (35.1%) are dominant life form spectra in the studied area. results also indicate the irano-turanian species (60.2%) are the main chorological elements of qom province. of all studied species, nearly 63 (7.5%) belong to iranian endemics. the main vegetation types found in qom province include semi-desert artemisia steppe, thorn-cushion mountain steppe, open shrublands, cliff vegetation, marl and gypsophilous vegetation, halophytic vegetation, psammophyte vegetation, aquatic and riverine communities, as well as invasive and ruderal communities. by using species richness analysis in 0.1-degree grids, veshnaveh and palang darre were identified as the richest areas of qom province.

study of flora, life form and chorology of plants in qom province, iran

qom province with the surface area of 11526 km2 lies between 34˚8́ 35˚11́ n and 50˚4́ 51˚59́ e is located in iran. according to the global bioclimatic classification system (gbc), qom province characterized by a mediterranean climate and of xeric and desertic continental sub-climates. a checklist was prepared to outline the species richness of the studied area, including 841 plant species representing 385 genera and 81 families. 109 species were also reported for the first time, which were not previously reported from this province in botanical sources and studies. angiosperms are represented by 734 and 100, eudicots and monocots, respectively. the prominent families are asteraceae with, 117 and fabaceae with, 87 species. richest genera fall into astragalus (59), salsola (16) and cousinia (15). however, 51.8% of the families are monogene0ric, while 59.5% of the monogeneric families are monospecific. therophyte (37.9%) and hemicryptophyte (35.1%) are dominant life form spectra in the studied area. results also indicate the irano-turanian species (60.2%) are the main chorological elements of qom province. of all studied species, nearly 63 (7.5%) belong to iranian endemics. the main vegetation types found in qom province include semi-desert artemisia steppe, thorn-cushion mountain steppe, open shrublands, cliff vegetation, marl and gypsophilous vegetation, halophytic vegetation, psammophyte vegetation, aquatic and riverine communities, as well as invasive and ruderal communities. by using species richness analysis in 0.1-degree grids, veshnaveh and palang darre were identified as the richest areas of qom province.