Total Height of Three Plants

During a field trip, Sophia and her classmates collected data about the heights of various plants. They measured the height of a sunflower and recorded it as 48 cm. They also measured the height of a rosebush which was 20 cm shorter than the sunflower. Additionally, they measured a third plant, which was 12 cm taller than the rosebush. If Sophia combines the heights of all three plants, what is the total height in centimeters?