Earth is covered in countless different species of plants. To make it easier to study and understand them, experts have divided these species into larger groups that look, reproduce, and grow in similar ways. Readers learn about what makes each of these groups different, as well as why they are essential to the health of the planet. | What's That Plant? (A True Book: Incredible Plants ) (Library Edition) by Cody Crane, Reinforced Library Binding | Indigo Chapters