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The oak tree in Skjomendalen © Gerhard Sørensen-Fuglem and Cecilia Piccirilli Bjerkeset
An oak grows north of the Arctic Circle in Norway
Website Editor | Aug 14, 2023
Unusual symptoms linked to phytoplasma infection in Quercus humboldtiii, Colombia © Eric Boa
Symptoms linked to phytoplasma infection found in Quercus...
Website Editor | Aug 06, 2023
Different names are being used for one species.
Website Editor | Jun 20, 2023

Plant Focus

A small but mature Alabama sandstone oak producing acorns © Patrick Thompson
A Critically Endangered dwarf oak 

Oaks in Iran: September 28-October 16, 2016

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Josef Souček

Published May 2018 in International Oaks No. 29: 151–161


A trip to Iran had been on the Plaček Quercetum agenda since autumn 2015. Of the dozen or so taxa found in Iran, our main interest was to find populations of those species found only in Iran and in the neighboring Caucasus and Turkey. Our primary objective was Quercus castaneifolia and Q. macranthera, both of which grow in the Hyrcan Forest in the Alborz Mountains, near the Caspian Sea, where the climate is humid, unlike in other parts of Iran. The Alborz Mountains extend roughly between the provinces of Ardabil and Golestan. These Mountains boast a rich and diversified flora, due in part to the varied climate: from the shores of the Caspian, where temperatures rarely fall below freezing, to the alpine-type vegetation in the mountains that soar to more than 4,000 m above sea level, remaining in parts snow-capped for most of the year. The presence of these mountains creates the desert conditions found throughout most of the interior of Iran




Djavanchir Khoie, K. 1967. Les chênes de l’Iran. PhD Thesis. Université de Montpellier, Faculté des Sciences.

Menitsky, Yu. L. Oaks of Asia. Enfield, NH, USA: Science Publishers, 2005.

Panahi, P., Z. Jamzad, M.R. Pourmajidian, A. Fallah, M. Pourhashemi, and H. Sorhrabi. 2012. Taxonomic Revision of the Quercus brantii complex (Fagaceae) in Iran with emphasis on leaf and pollen micromorphology. Acta Botanica Hungarica 54(3-4) : 355-375.

Rechinger, K.H. Flora Iranica Vol. 77: Fagaceae. Graz, 197.