The lower slopes of Talysh and Alborz Mountains below 700 meters harbor diverse humid forests containing Chestnut-leaved Oak, European Hornbeam (Carpinus betulus), Persian Ironwood (Parrotia persica), Caucasian Zelkova (Zelkova carpinifolia), Persian Silk Tree (Albizia julibrissin), and Date-plum (Diospyros lotus) along with shrubs holly (Ilex hyrcana), Ruscus hyrcanus, Danaë racemosa and Atropa pallidiflora, Rechinger, Karl Heinz and Schönbeck-Temesy, Eva 1972.