The angiosperms include many plant families. The most common one in the Petrified Forest are the laurels (Lauraceae) and the beech (Fragaceae) which belong to the dicotyledons. Many types of laurels and cinnamon belong to the laurel family, while species of oak, chestnut and beech belong to the beech family. The Ebenaceae includes the persimmon (Diospyros), Salicaceae includes the poplar and willow, the Betulaceae includes birches, alders and hornbeams. The collection also includes plants like the lime, maple, blackberry and sumac.