5. C4 Plant

This is a picture of corn. Corn is a C4 plant. C4 plants are more efficient than C3 plants when in hot, dry climates. This is due to the fact that during the Calvin cycle, the process which plants take in CO2 and convert it into glucose for energy, C4 plants make four-carbon molecules and C3 plants make two three-carbon molecules. This allows plants such as corn, sugarcane plants, witchgrass, and others to thrive in hot, dry climates.