Caspian sea forest
The Caspian Hyrcanian Mixed Forests ecoregion, in the temperate broadleaf and mixed forests biome, is an area of lush lowland and montane forests covering about 55,000 square kilometres (21,000 sq mi) near the southern shores of the Caspian Sea of Iran and Azerbaijan. The forest is named after the ancient region of Hyrcania ("wolf land").
In southeast Azerbaijan, this ecoregion includes the Lankaran Lowland and the Talysh Mountains.
The ecoregion’s climate is humid subtropical, in middle altitude locations, oceanic and in the mountains, humid continental with most precipitation occurring in fall, winter, and spring. The Alborz mountain range is the highest mountain range in the Middle East which captures the moisture of the Caspian Sea. Annual rainfall ranges from 900 mm (35 in) in the east to 1,600 mm (63 in) in the west, making this ecoregion much lusher than the desert, semi-desert, and steppe ecoregions on its borders.