Trees

Trees are tall, woody plants used for lumber, food, and processing. Trees appearance and function is largely controlled by seasonal changes, with trees yielding tannin in Spring, fruit in Summer, and nuts in Autumn. Wood may be harvested, in the form of logs and sticks, year-round. Evergreen trees like pines, firs, and spruces look relatively the same all year whilst deciduous tree (oaks, birch, etc) leaves change from Summer green to Autumn orange and lose their leaves in Winter altogether. Fruiting trees do the same, then flower in Spring before yielding food in following seasons.

Resources
Trees provide more resources as they advance in age. Chopping down a tree before it reaches full size will result in fewer resources.