Plants Used By People

Plants are living organisms belonging to the kingdom Plantae. They include familiar organisms such as trees, flowers, herbs, bushes, grasses, vines, ferns, mosses, and green algae. The scientific study of plants is known as botany. As of 2010, botanists have identified more than 315,000 species of plants, of which 281,821 are flowering, 12,000 are ferns and fern allies, and 16,236 are bryophytes. Green plants, sometimes called Viridiplantae, obtain most of their energy from sunlight via photosynthesis. This process uses chlorophyll contained in chloroplasts, which gives plants their green color.