Effects of physiographic factors and soil properties on distribution of Ferula gummosa Boiss, Case study: Karaj kalarud region Journal title: Journal of Biodiversity and Environmental Sciences (JBES) Authors: S.H. Hamzeh Saravi, K. Sefidi, F. Keivanbehjoo, R. Khalifehzadeh, E. Zandi Esfahan, H. Mohammadi Nas... Subject(s): Biological Sciences, Environmental Sciences, Biology