This reference guide to plants features sections on everything from cells to seeds, bacteria to fungi, algae, ferns, conifers and flowering plants. Each page is accompanied by an illustration composed of scientifically accurate line drawings that indicate the true sizes of the plants. From why leaves "turn" colour in autumn to why "pinching" makes plants "bushy," and many other topics, this book provides a resource on plants used for food, ornamentals, lumber, medicines, herbs, dyes, and fertilizers.