Nature classifies all trees into three main groups. Deciduous trees shed leaves seasonally. Evergreen trees remain green year-round. Coniferous trees reproduce using cones. These categories explain ...

Of all the Christmas traditions, there's nothing quite as magical as picking out a tree. Picture this: You're strolling through rows of luscious pine, fir, and spruce trees on a brisk afternoon at a ...

Wherever trees grow, sooner or later their leaves get wet. For trees in wet environments, this can be a problem if films of water cover their stomata. These tiny pores allow carbon dioxide to enter ...