In today's video, we'll talk about aloe vera and its incredible health benefits. Aloe vera, a popular medicinal plant, is ...

There are 49 species of pine tree native to North America. Non-native species have also been introduced to the United Sates, as ornamental trees in landscaping.

All tree leaves have an outer layer called the epidermis, which can also be used in the identification process. This leaf "skin" always has a waxy cover called the cuticle and varies in thickness.