Using floristic data to shed light on the origin of flora in the poorly studied common cypress habitats of Northern Iran.

Despite the ecological importance, there is a large knowledge gap on different habitat types of the Hyrcanian World Heritage. The Hyrcanian Common Cypress Habitats (HCCHs), the easternmost part of the Common Cypress habitats in the world, are one of these habitat types. HCCHs are understudied and threatened by a variety of anthropogenic disturbances.