It seems to favour edge habitats with low canopies and groves of palms and rattans. A certain amount of sandalwood, damar, and rattans was also exported. Pahang was historically a primary exporter of forestry products like sandalwood, damar and rattans. Subfamily Calamoideae includes the climbing palms, such as rattans. Exclusively sympodial genera include many of the rattans, "Guihaia", and "Rhapis". All rattans belong to the Old World. A study in Thailand found that most nests are placed in spiny palms and rattans. There are 13 different genera of rattans that include around 600 species. The forest undergrowth predominantly comprises rattans, bamboos, shrubs and climbers. Rattans are also superficially similar to bamboo. "Phyllocladus hypophyllus", medicinal plants, and rattans. These rattans are uncommon in cultivation and poorly understood by taxonomists;. Rattans are extensively used for making baskets and furniture. The type genus is "Calamus" and many of its members are rattans. Rattans have been known to grow up to hundreds of metres long.